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Finding the Fourth Proportional to 322,312.80, 444,765.56 and 186,355.48

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Solution

The fourth proportional to 322,312.80, 444,765.56 and 186,355.48 is: 257,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,312.80 : 444,765.56 = 186,355.48 : x
  2. Step 2: Convert to fraction form
    322,312.80/444,765.56 = 186,355.48/x
  3. Step 3: Cross multiply
    322,312.80x = 444,765.56 × 186,355.48
  4. Step 4: Simplify right side
    322,312.80x = 82,884,499,421.27
  5. Step 5: Solve for x
    x = 82,884,499,421.27/322,312.80
  6. Step 6: Final answer
    x = 257,155.47

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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.