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Finding the Fourth Proportional to 317,552.97, 438,206.78 and 188,496.89

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Solution

The fourth proportional to 317,552.97, 438,206.78 and 188,496.89 is: 260,116.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,552.97 : 438,206.78 = 188,496.89 : x
  2. Step 2: Convert to fraction form
    317,552.97/438,206.78 = 188,496.89/x
  3. Step 3: Cross multiply
    317,552.97x = 438,206.78 × 188,496.89
  4. Step 4: Simplify right side
    317,552.97x = 82,600,615,206.91
  5. Step 5: Solve for x
    x = 82,600,615,206.91/317,552.97
  6. Step 6: Final answer
    x = 260,116.02

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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.