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Finding the Fourth Proportional to 605,087.60, 907,631.40 and 576,057.20

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Solution

The fourth proportional to 605,087.60, 907,631.40 and 576,057.20 is: 864,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.60 : 907,631.40 = 576,057.20 : x
  2. Step 2: Convert to fraction form
    605,087.60/907,631.40 = 576,057.20/x
  3. Step 3: Cross multiply
    605,087.60x = 907,631.40 × 576,057.20
  4. Step 4: Simplify right side
    605,087.60x = 522,847,602,916.08
  5. Step 5: Solve for x
    x = 522,847,602,916.08/605,087.60
  6. Step 6: Final answer
    x = 864,085.80

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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.