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Finding the Fourth Proportional to 680,433.84, 939,165.36 and 527,168.88

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Solution

The fourth proportional to 680,433.84, 939,165.36 and 527,168.88 is: 727,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,433.84 : 939,165.36 = 527,168.88 : x
  2. Step 2: Convert to fraction form
    680,433.84/939,165.36 = 527,168.88/x
  3. Step 3: Cross multiply
    680,433.84x = 939,165.36 × 527,168.88
  4. Step 4: Simplify right side
    680,433.84x = 495,098,750,966.00
  5. Step 5: Solve for x
    x = 495,098,750,966.00/680,433.84
  6. Step 6: Final answer
    x = 727,622.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.