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Finding the Fourth Proportional to 608,082.80, 911,087.40 and 502,329.20

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Solution

The fourth proportional to 608,082.80, 911,087.40 and 502,329.20 is: 752,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,082.80 : 911,087.40 = 502,329.20 : x
  2. Step 2: Convert to fraction form
    608,082.80/911,087.40 = 502,329.20/x
  3. Step 3: Cross multiply
    608,082.80x = 911,087.40 × 502,329.20
  4. Step 4: Simplify right side
    608,082.80x = 457,665,804,772.08
  5. Step 5: Solve for x
    x = 457,665,804,772.08/608,082.80
  6. Step 6: Final answer
    x = 752,637.31

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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.