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Finding the Fourth Proportional to 621,127.70, 932,392.35 and 411,175.70

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Solution

The fourth proportional to 621,127.70, 932,392.35 and 411,175.70 is: 617,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,127.70 : 932,392.35 = 411,175.70 : x
  2. Step 2: Convert to fraction form
    621,127.70/932,392.35 = 411,175.70/x
  3. Step 3: Cross multiply
    621,127.70x = 932,392.35 × 411,175.70
  4. Step 4: Simplify right side
    621,127.70x = 383,377,077,185.90
  5. Step 5: Solve for x
    x = 383,377,077,185.90/621,127.70
  6. Step 6: Final answer
    x = 617,227.47

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1.5x scale

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.