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Finding the Fourth Proportional to 575,215.38, 862,821.63 and 170,439.11

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Solution

The fourth proportional to 575,215.38, 862,821.63 and 170,439.11 is: 255,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,215.38 : 862,821.63 = 170,439.11 : x
  2. Step 2: Convert to fraction form
    575,215.38/862,821.63 = 170,439.11/x
  3. Step 3: Cross multiply
    575,215.38x = 862,821.63 × 170,439.11
  4. Step 4: Simplify right side
    575,215.38x = 147,058,550,705.95
  5. Step 5: Solve for x
    x = 147,058,550,705.95/575,215.38
  6. Step 6: Final answer
    x = 255,658.24

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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.