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Finding the Fourth Proportional to 288,889.77, 398,542.50 and 174,103.19

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Solution

The fourth proportional to 288,889.77, 398,542.50 and 174,103.19 is: 240,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,889.77 : 398,542.50 = 174,103.19 : x
  2. Step 2: Convert to fraction form
    288,889.77/398,542.50 = 174,103.19/x
  3. Step 3: Cross multiply
    288,889.77x = 398,542.50 × 174,103.19
  4. Step 4: Simplify right side
    288,889.77x = 69,387,518,607.86
  5. Step 5: Solve for x
    x = 69,387,518,607.86/288,889.77
  6. Step 6: Final answer
    x = 240,186.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.