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Finding the Fourth Proportional to 506,672.98, 699,305.07 and 361,870.90

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Solution

The fourth proportional to 506,672.98, 699,305.07 and 361,870.90 is: 499,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,672.98 : 699,305.07 = 361,870.90 : x
  2. Step 2: Convert to fraction form
    506,672.98/699,305.07 = 361,870.90/x
  3. Step 3: Cross multiply
    506,672.98x = 699,305.07 × 361,870.90
  4. Step 4: Simplify right side
    506,672.98x = 253,058,155,055.46
  5. Step 5: Solve for x
    x = 253,058,155,055.46/506,672.98
  6. Step 6: Final answer
    x = 499,450.66

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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.