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Finding the Fourth Proportional to 651,685.60, 977,528.40 and 651,685.60

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Solution

The fourth proportional to 651,685.60, 977,528.40 and 651,685.60 is: 977,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,685.60 : 977,528.40 = 651,685.60 : x
  2. Step 2: Convert to fraction form
    651,685.60/977,528.40 = 651,685.60/x
  3. Step 3: Cross multiply
    651,685.60x = 977,528.40 × 651,685.60
  4. Step 4: Simplify right side
    651,685.60x = 637,041,181,871.04
  5. Step 5: Solve for x
    x = 637,041,181,871.04/651,685.60
  6. Step 6: Final answer
    x = 977,528.40

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Half scale
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Double scale
Find fourth proportional to 651,686.60, 977,529.90 and 651,686.60
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.