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Finding the Fourth Proportional to 316,859.28, 437,265.75 and 173,624.70

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Solution

The fourth proportional to 316,859.28, 437,265.75 and 173,624.70 is: 239,602.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,859.28 : 437,265.75 = 173,624.70 : x
  2. Step 2: Convert to fraction form
    316,859.28/437,265.75 = 173,624.70/x
  3. Step 3: Cross multiply
    316,859.28x = 437,265.75 × 173,624.70
  4. Step 4: Simplify right side
    316,859.28x = 75,920,134,664.03
  5. Step 5: Solve for x
    x = 75,920,134,664.03/316,859.28
  6. Step 6: Final answer
    x = 239,602.06

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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.