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Finding the Fourth Proportional to 317,981.27, 438,797.90 and 174,713.63

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Solution

The fourth proportional to 317,981.27, 438,797.90 and 174,713.63 is: 241,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,981.27 : 438,797.90 = 174,713.63 : x
  2. Step 2: Convert to fraction form
    317,981.27/438,797.90 = 174,713.63/x
  3. Step 3: Cross multiply
    317,981.27x = 438,797.90 × 174,713.63
  4. Step 4: Simplify right side
    317,981.27x = 76,663,970,877.82
  5. Step 5: Solve for x
    x = 76,663,970,877.82/317,981.27
  6. Step 6: Final answer
    x = 241,095.87

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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.