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Finding the Fourth Proportional to 527,312.11, 790,842.71 and 227,628.71

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Solution

The fourth proportional to 527,312.11, 790,842.71 and 227,628.71 is: 341,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,312.11 : 790,842.71 = 227,628.71 : x
  2. Step 2: Convert to fraction form
    527,312.11/790,842.71 = 227,628.71/x
  3. Step 3: Cross multiply
    527,312.11x = 790,842.71 × 227,628.71
  4. Step 4: Simplify right side
    527,312.11x = 180,018,505,890.20
  5. Step 5: Solve for x
    x = 180,018,505,890.20/527,312.11
  6. Step 6: Final answer
    x = 341,388.91

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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.