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Finding the Fourth Proportional to 621,801.29, 932,701.67 and 172,522.09

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Solution

The fourth proportional to 621,801.29, 932,701.67 and 172,522.09 is: 258,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,801.29 : 932,701.67 = 172,522.09 : x
  2. Step 2: Convert to fraction form
    621,801.29/932,701.67 = 172,522.09/x
  3. Step 3: Cross multiply
    621,801.29x = 932,701.67 × 172,522.09
  4. Step 4: Simplify right side
    621,801.29x = 160,911,641,454.89
  5. Step 5: Solve for x
    x = 160,911,641,454.89/621,801.29
  6. Step 6: Final answer
    x = 258,783.06

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Double scale
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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.