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Finding the Fourth Proportional to 316,957.83, 437,381.97 and 173,707.71

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Solution

The fourth proportional to 316,957.83, 437,381.97 and 173,707.71 is: 239,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,957.83 : 437,381.97 = 173,707.71 : x
  2. Step 2: Convert to fraction form
    316,957.83/437,381.97 = 173,707.71/x
  3. Step 3: Cross multiply
    316,957.83x = 437,381.97 × 173,707.71
  4. Step 4: Simplify right side
    316,957.83x = 75,976,620,403.99
  5. Step 5: Solve for x
    x = 75,976,620,403.99/316,957.83
  6. Step 6: Final answer
    x = 239,705.77

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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.