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Finding the Fourth Proportional to 621,575.80, 932,271.42 and 172,249.83

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Solution

The fourth proportional to 621,575.80, 932,271.42 and 172,249.83 is: 258,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,575.80 : 932,271.42 = 172,249.83 : x
  2. Step 2: Convert to fraction form
    621,575.80/932,271.42 = 172,249.83/x
  3. Step 3: Cross multiply
    621,575.80x = 932,271.42 × 172,249.83
  4. Step 4: Simplify right side
    621,575.80x = 160,583,593,608.86
  5. Step 5: Solve for x
    x = 160,583,593,608.86/621,575.80
  6. Step 6: Final answer
    x = 258,349.17

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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.