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Finding the Fourth Proportional to 424,332.45, 587,120.79 and 369,997.85

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Solution

The fourth proportional to 424,332.45, 587,120.79 and 369,997.85 is: 511,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,332.45 : 587,120.79 = 369,997.85 : x
  2. Step 2: Convert to fraction form
    424,332.45/587,120.79 = 369,997.85/x
  3. Step 3: Cross multiply
    424,332.45x = 587,120.79 × 369,997.85
  4. Step 4: Simplify right side
    424,332.45x = 217,233,429,990.30
  5. Step 5: Solve for x
    x = 217,233,429,990.30/424,332.45
  6. Step 6: Final answer
    x = 511,941.59

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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.