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Finding the Fourth Proportional to 656,073.20, 984,109.80 and 649,852.40

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Solution

The fourth proportional to 656,073.20, 984,109.80 and 649,852.40 is: 974,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,073.20 : 984,109.80 = 649,852.40 : x
  2. Step 2: Convert to fraction form
    656,073.20/984,109.80 = 649,852.40/x
  3. Step 3: Cross multiply
    656,073.20x = 984,109.80 × 649,852.40
  4. Step 4: Simplify right side
    656,073.20x = 639,526,115,393.52
  5. Step 5: Solve for x
    x = 639,526,115,393.52/656,073.20
  6. Step 6: Final answer
    x = 974,778.60

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Double scale
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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.