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Finding the Fourth Proportional to 518,556.48, 777,834.96 and 124,572.48

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Solution

The fourth proportional to 518,556.48, 777,834.96 and 124,572.48 is: 186,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,556.48 : 777,834.96 = 124,572.48 : x
  2. Step 2: Convert to fraction form
    518,556.48/777,834.96 = 124,572.48/x
  3. Step 3: Cross multiply
    518,556.48x = 777,834.96 × 124,572.48
  4. Step 4: Simplify right side
    518,556.48x = 96,896,829,997.90
  5. Step 5: Solve for x
    x = 96,896,829,997.90/518,556.48
  6. Step 6: Final answer
    x = 186,858.78

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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.