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Finding the Fourth Proportional to 418,082.40, 626,864.40 and 240,501.60

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Solution

The fourth proportional to 418,082.40, 626,864.40 and 240,501.60 is: 360,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,082.40 : 626,864.40 = 240,501.60 : x
  2. Step 2: Convert to fraction form
    418,082.40/626,864.40 = 240,501.60/x
  3. Step 3: Cross multiply
    418,082.40x = 626,864.40 × 240,501.60
  4. Step 4: Simplify right side
    418,082.40x = 150,761,891,183.04
  5. Step 5: Solve for x
    x = 150,761,891,183.04/418,082.40
  6. Step 6: Final answer
    x = 360,603.30

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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.