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Finding the Fourth Proportional to 316,726.52, 437,082.71 and 173,491.73

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Solution

The fourth proportional to 316,726.52, 437,082.71 and 173,491.73 is: 239,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,726.52 : 437,082.71 = 173,491.73 : x
  2. Step 2: Convert to fraction form
    316,726.52/437,082.71 = 173,491.73/x
  3. Step 3: Cross multiply
    316,726.52x = 437,082.71 × 173,491.73
  4. Step 4: Simplify right side
    316,726.52x = 75,830,232,458.12
  5. Step 5: Solve for x
    x = 75,830,232,458.12/316,726.52
  6. Step 6: Final answer
    x = 239,418.64

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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.