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Finding the Fourth Proportional to 653,459,969.80, 980,189,954.70 and 649,633,594.60

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Solution

The fourth proportional to 653,459,969.80, 980,189,954.70 and 649,633,594.60 is: 974,450,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,459,969.80 : 980,189,954.70 = 649,633,594.60 : x
  2. Step 2: Convert to fraction form
    653,459,969.80/980,189,954.70 = 649,633,594.60/x
  3. Step 3: Cross multiply
    653,459,969.80x = 980,189,954.70 × 649,633,594.60
  4. Step 4: Simplify right side
    653,459,969.80x = 636,764,323,662,572,160
  5. Step 5: Solve for x
    x = 636,764,323,662,572,160/653,459,969.80
  6. Step 6: Final answer
    x = 974,450,391.90

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Half scale
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Double scale
Find fourth proportional to 653,459,970.80, 980,189,956.20 and 649,633,595.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.