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Finding the Fourth Proportional to 316,911.47, 437,337.83 and 173,674.82

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Solution

The fourth proportional to 316,911.47, 437,337.83 and 173,674.82 is: 239,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,911.47 : 437,337.83 = 173,674.82 : x
  2. Step 2: Convert to fraction form
    316,911.47/437,337.83 = 173,674.82/x
  3. Step 3: Cross multiply
    316,911.47x = 437,337.83 × 173,674.82
  4. Step 4: Simplify right side
    316,911.47x = 75,954,565,849.38
  5. Step 5: Solve for x
    x = 75,954,565,849.38/316,911.47
  6. Step 6: Final answer
    x = 239,671.25

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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.