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Finding the Fourth Proportional to 621,671.31, 932,506.97 and 411,260.04

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Solution

The fourth proportional to 621,671.31, 932,506.97 and 411,260.04 is: 616,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,671.31 : 932,506.97 = 411,260.04 : x
  2. Step 2: Convert to fraction form
    621,671.31/932,506.97 = 411,260.04/x
  3. Step 3: Cross multiply
    621,671.31x = 932,506.97 × 411,260.04
  4. Step 4: Simplify right side
    621,671.31x = 383,502,851,726.18
  5. Step 5: Solve for x
    x = 383,502,851,726.18/621,671.31
  6. Step 6: Final answer
    x = 616,890.06

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Similar ratio
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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.