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Finding the Fourth Proportional to 621,585.53, 932,285.91 and 172,259.54

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Solution

The fourth proportional to 621,585.53, 932,285.91 and 172,259.54 is: 258,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,585.53 : 932,285.91 = 172,259.54 : x
  2. Step 2: Convert to fraction form
    621,585.53/932,285.91 = 172,259.54/x
  3. Step 3: Cross multiply
    621,585.53x = 932,285.91 × 172,259.54
  4. Step 4: Simplify right side
    621,585.53x = 160,595,137,343.65
  5. Step 5: Solve for x
    x = 160,595,137,343.65/621,585.53
  6. Step 6: Final answer
    x = 258,363.70

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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.