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Finding the Fourth Proportional to 605,154.60, 907,731.90 and 577,598.40

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Solution

The fourth proportional to 605,154.60, 907,731.90 and 577,598.40 is: 866,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,154.60 : 907,731.90 = 577,598.40 : x
  2. Step 2: Convert to fraction form
    605,154.60/907,731.90 = 577,598.40/x
  3. Step 3: Cross multiply
    605,154.60x = 907,731.90 × 577,598.40
  4. Step 4: Simplify right side
    605,154.60x = 524,304,493,068.96
  5. Step 5: Solve for x
    x = 524,304,493,068.96/605,154.60
  6. Step 6: Final answer
    x = 866,397.60

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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.