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Finding the Fourth Proportional to 360,099.98, 496,781.85 and 216,776.98

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Solution

The fourth proportional to 360,099.98, 496,781.85 and 216,776.98 is: 299,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,099.98 : 496,781.85 = 216,776.98 : x
  2. Step 2: Convert to fraction form
    360,099.98/496,781.85 = 216,776.98/x
  3. Step 3: Cross multiply
    360,099.98x = 496,781.85 × 216,776.98
  4. Step 4: Simplify right side
    360,099.98x = 107,690,869,161.81
  5. Step 5: Solve for x
    x = 107,690,869,161.81/360,099.98
  6. Step 6: Final answer
    x = 299,058.25

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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.