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Finding the Fourth Proportional to 508,987.67, 763,473.60 and 124,740.27

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Solution

The fourth proportional to 508,987.67, 763,473.60 and 124,740.27 is: 187,108.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,987.67 : 763,473.60 = 124,740.27 : x
  2. Step 2: Convert to fraction form
    508,987.67/763,473.60 = 124,740.27/x
  3. Step 3: Cross multiply
    508,987.67x = 763,473.60 × 124,740.27
  4. Step 4: Simplify right side
    508,987.67x = 95,235,903,001.87
  5. Step 5: Solve for x
    x = 95,235,903,001.87/508,987.67
  6. Step 6: Final answer
    x = 187,108.47

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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.