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Finding the Fourth Proportional to 574,515.46, 860,966.50 and 454,042.74

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Solution

The fourth proportional to 574,515.46, 860,966.50 and 454,042.74 is: 680,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,515.46 : 860,966.50 = 454,042.74 : x
  2. Step 2: Convert to fraction form
    574,515.46/860,966.50 = 454,042.74/x
  3. Step 3: Cross multiply
    574,515.46x = 860,966.50 × 454,042.74
  4. Step 4: Simplify right side
    574,515.46x = 390,915,588,708.21
  5. Step 5: Solve for x
    x = 390,915,588,708.21/574,515.46
  6. Step 6: Final answer
    x = 680,426.58

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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.