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Finding the Fourth Proportional to 621,703.88, 932,555.77 and 172,424.74

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Solution

The fourth proportional to 621,703.88, 932,555.77 and 172,424.74 is: 258,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,703.88 : 932,555.77 = 172,424.74 : x
  2. Step 2: Convert to fraction form
    621,703.88/932,555.77 = 172,424.74/x
  3. Step 3: Cross multiply
    621,703.88x = 932,555.77 × 172,424.74
  4. Step 4: Simplify right side
    621,703.88x = 160,795,686,177.75
  5. Step 5: Solve for x
    x = 160,795,686,177.75/621,703.88
  6. Step 6: Final answer
    x = 258,637.10

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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.