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Finding the Fourth Proportional to 486,475.74, 730,045.85 and 170,932.68

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Solution

The fourth proportional to 486,475.74, 730,045.85 and 170,932.68 is: 256,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,475.74 : 730,045.85 = 170,932.68 : x
  2. Step 2: Convert to fraction form
    486,475.74/730,045.85 = 170,932.68/x
  3. Step 3: Cross multiply
    486,475.74x = 730,045.85 × 170,932.68
  4. Step 4: Simplify right side
    486,475.74x = 124,788,692,808.72
  5. Step 5: Solve for x
    x = 124,788,692,808.72/486,475.74
  6. Step 6: Final answer
    x = 256,515.76

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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.