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Finding the Fourth Proportional to 520,833.60, 781,250.40 and 188,331.84

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Solution

The fourth proportional to 520,833.60, 781,250.40 and 188,331.84 is: 282,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,833.60 : 781,250.40 = 188,331.84 : x
  2. Step 2: Convert to fraction form
    520,833.60/781,250.40 = 188,331.84/x
  3. Step 3: Cross multiply
    520,833.60x = 781,250.40 × 188,331.84
  4. Step 4: Simplify right side
    520,833.60x = 147,134,325,332.74
  5. Step 5: Solve for x
    x = 147,134,325,332.74/520,833.60
  6. Step 6: Final answer
    x = 282,497.76

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Similar ratio
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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.