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Finding the Fourth Proportional to 354,344.40, 532,335.80 and 243,752.40

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Solution

The fourth proportional to 354,344.40, 532,335.80 and 243,752.40 is: 366,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,344.40 : 532,335.80 = 243,752.40 : x
  2. Step 2: Convert to fraction form
    354,344.40/532,335.80 = 243,752.40/x
  3. Step 3: Cross multiply
    354,344.40x = 532,335.80 × 243,752.40
  4. Step 4: Simplify right side
    354,344.40x = 129,758,128,855.92
  5. Step 5: Solve for x
    x = 129,758,128,855.92/354,344.40
  6. Step 6: Final answer
    x = 366,192.13

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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.