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Finding the Fourth Proportional to 585,924.20, 876,812.70 and 399,300.20

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Solution

The fourth proportional to 585,924.20, 876,812.70 and 399,300.20 is: 597,537.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,924.20 : 876,812.70 = 399,300.20 : x
  2. Step 2: Convert to fraction form
    585,924.20/876,812.70 = 399,300.20/x
  3. Step 3: Cross multiply
    585,924.20x = 876,812.70 × 399,300.20
  4. Step 4: Simplify right side
    585,924.20x = 350,111,486,472.54
  5. Step 5: Solve for x
    x = 350,111,486,472.54/585,924.20
  6. Step 6: Final answer
    x = 597,537.17

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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.