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Finding the Fourth Proportional to 445,131.55, 614,311.67 and 251,472.08

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Solution

The fourth proportional to 445,131.55, 614,311.67 and 251,472.08 is: 347,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,131.55 : 614,311.67 = 251,472.08 : x
  2. Step 2: Convert to fraction form
    445,131.55/614,311.67 = 251,472.08/x
  3. Step 3: Cross multiply
    445,131.55x = 614,311.67 × 251,472.08
  4. Step 4: Simplify right side
    445,131.55x = 154,482,233,423.17
  5. Step 5: Solve for x
    x = 154,482,233,423.17/445,131.55
  6. Step 6: Final answer
    x = 347,048.49

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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.