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Finding the Fourth Proportional to 621,508.66, 932,260.32 and 172,228.23

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Solution

The fourth proportional to 621,508.66, 932,260.32 and 172,228.23 is: 258,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,508.66 : 932,260.32 = 172,228.23 : x
  2. Step 2: Convert to fraction form
    621,508.66/932,260.32 = 172,228.23/x
  3. Step 3: Cross multiply
    621,508.66x = 932,260.32 × 172,228.23
  4. Step 4: Simplify right side
    621,508.66x = 160,561,544,812.83
  5. Step 5: Solve for x
    x = 160,561,544,812.83/621,508.66
  6. Step 6: Final answer
    x = 258,341.61

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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.