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Finding the Fourth Proportional to 527,253.65, 790,347.87 and 207,629.81

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Solution

The fourth proportional to 527,253.65, 790,347.87 and 207,629.81 is: 311,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,253.65 : 790,347.87 = 207,629.81 : x
  2. Step 2: Convert to fraction form
    527,253.65/790,347.87 = 207,629.81/x
  3. Step 3: Cross multiply
    527,253.65x = 790,347.87 × 207,629.81
  4. Step 4: Simplify right side
    527,253.65x = 164,099,778,082.01
  5. Step 5: Solve for x
    x = 164,099,778,082.01/527,253.65
  6. Step 6: Final answer
    x = 311,234.98

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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.