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Finding the Fourth Proportional to 527,287.28, 791,065.74 and 153,310.28

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Solution

The fourth proportional to 527,287.28, 791,065.74 and 153,310.28 is: 230,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,287.28 : 791,065.74 = 153,310.28 : x
  2. Step 2: Convert to fraction form
    527,287.28/791,065.74 = 153,310.28/x
  3. Step 3: Cross multiply
    527,287.28x = 791,065.74 × 153,310.28
  4. Step 4: Simplify right side
    527,287.28x = 121,278,510,097.81
  5. Step 5: Solve for x
    x = 121,278,510,097.81/527,287.28
  6. Step 6: Final answer
    x = 230,004.62

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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.