Home / 527,516.06-727,972.87-285,798.65

Finding the Fourth Proportional to 527,516.06, 727,972.87 and 285,798.65

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Solution

The fourth proportional to 527,516.06, 727,972.87 and 285,798.65 is: 394,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,516.06 : 727,972.87 = 285,798.65 : x
  2. Step 2: Convert to fraction form
    527,516.06/727,972.87 = 285,798.65/x
  3. Step 3: Cross multiply
    527,516.06x = 727,972.87 × 285,798.65
  4. Step 4: Simplify right side
    527,516.06x = 208,053,659,842.76
  5. Step 5: Solve for x
    x = 208,053,659,842.76/527,516.06
  6. Step 6: Final answer
    x = 394,402.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.