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Finding the Fourth Proportional to 619,561.62, 929,352.69 and 170,279.73

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Solution

The fourth proportional to 619,561.62, 929,352.69 and 170,279.73 is: 255,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,561.62 : 929,352.69 = 170,279.73 : x
  2. Step 2: Convert to fraction form
    619,561.62/929,352.69 = 170,279.73/x
  3. Step 3: Cross multiply
    619,561.62x = 929,352.69 × 170,279.73
  4. Step 4: Simplify right side
    619,561.62x = 158,249,925,127.97
  5. Step 5: Solve for x
    x = 158,249,925,127.97/619,561.62
  6. Step 6: Final answer
    x = 255,422.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.