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Finding the Fourth Proportional to 409,781.90, 614,672.85 and 401,908.70

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Solution

The fourth proportional to 409,781.90, 614,672.85 and 401,908.70 is: 602,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,781.90 : 614,672.85 = 401,908.70 : x
  2. Step 2: Convert to fraction form
    409,781.90/614,672.85 = 401,908.70/x
  3. Step 3: Cross multiply
    409,781.90x = 614,672.85 × 401,908.70
  4. Step 4: Simplify right side
    409,781.90x = 247,042,366,068.80
  5. Step 5: Solve for x
    x = 247,042,366,068.80/409,781.90
  6. Step 6: Final answer
    x = 602,863.05

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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.