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Finding the Fourth Proportional to 527,614.60, 791,421.90 and 190,816.60

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Solution

The fourth proportional to 527,614.60, 791,421.90 and 190,816.60 is: 286,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,614.60 : 791,421.90 = 190,816.60 : x
  2. Step 2: Convert to fraction form
    527,614.60/791,421.90 = 190,816.60/x
  3. Step 3: Cross multiply
    527,614.60x = 791,421.90 × 190,816.60
  4. Step 4: Simplify right side
    527,614.60x = 151,016,436,123.54
  5. Step 5: Solve for x
    x = 151,016,436,123.54/527,614.60
  6. Step 6: Final answer
    x = 286,224.90

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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.