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Finding the Fourth Proportional to 527,685.20, 791,527.80 and 133,701.20

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Solution

The fourth proportional to 527,685.20, 791,527.80 and 133,701.20 is: 200,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,685.20 : 791,527.80 = 133,701.20 : x
  2. Step 2: Convert to fraction form
    527,685.20/791,527.80 = 133,701.20/x
  3. Step 3: Cross multiply
    527,685.20x = 791,527.80 × 133,701.20
  4. Step 4: Simplify right side
    527,685.20x = 105,828,216,693.36
  5. Step 5: Solve for x
    x = 105,828,216,693.36/527,685.20
  6. Step 6: Final answer
    x = 200,551.80

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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.