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Finding the Fourth Proportional to 317,053.86, 437,512.50 and 187,985.76

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Solution

The fourth proportional to 317,053.86, 437,512.50 and 187,985.76 is: 259,407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,053.86 : 437,512.50 = 187,985.76 : x
  2. Step 2: Convert to fraction form
    317,053.86/437,512.50 = 187,985.76/x
  3. Step 3: Cross multiply
    317,053.86x = 437,512.50 × 187,985.76
  4. Step 4: Simplify right side
    317,053.86x = 82,246,119,822
  5. Step 5: Solve for x
    x = 82,246,119,822/317,053.86
  6. Step 6: Final answer
    x = 259,407.41

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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.