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Finding the Fourth Proportional to 527,065.38, 790,619.94 and 153,088.38

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Solution

The fourth proportional to 527,065.38, 790,619.94 and 153,088.38 is: 229,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,065.38 : 790,619.94 = 153,088.38 : x
  2. Step 2: Convert to fraction form
    527,065.38/790,619.94 = 153,088.38/x
  3. Step 3: Cross multiply
    527,065.38x = 790,619.94 × 153,088.38
  4. Step 4: Simplify right side
    527,065.38x = 121,034,721,857.20
  5. Step 5: Solve for x
    x = 121,034,721,857.20/527,065.38
  6. Step 6: Final answer
    x = 229,638.92

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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.