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Finding the Fourth Proportional to 391,384.18, 540,101.04 and 230,249.61

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Solution

The fourth proportional to 391,384.18, 540,101.04 and 230,249.61 is: 317,739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,384.18 : 540,101.04 = 230,249.61 : x
  2. Step 2: Convert to fraction form
    391,384.18/540,101.04 = 230,249.61/x
  3. Step 3: Cross multiply
    391,384.18x = 540,101.04 × 230,249.61
  4. Step 4: Simplify right side
    391,384.18x = 124,358,052,957.16
  5. Step 5: Solve for x
    x = 124,358,052,957.16/391,384.18
  6. Step 6: Final answer
    x = 317,739.09

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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.