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Finding the Fourth Proportional to 527,601.85, 728,127.49 and 298,180.33

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Solution

The fourth proportional to 527,601.85, 728,127.49 and 298,180.33 is: 411,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,601.85 : 728,127.49 = 298,180.33 : x
  2. Step 2: Convert to fraction form
    527,601.85/728,127.49 = 298,180.33/x
  3. Step 3: Cross multiply
    527,601.85x = 728,127.49 × 298,180.33
  4. Step 4: Simplify right side
    527,601.85x = 217,113,295,250.27
  5. Step 5: Solve for x
    x = 217,113,295,250.27/527,601.85
  6. Step 6: Final answer
    x = 411,509.73

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1.5x scale

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.