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Finding the Fourth Proportional to 468,781.65, 646,872.35 and 262,011.33

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Solution

The fourth proportional to 468,781.65, 646,872.35 and 262,011.33 is: 361,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,781.65 : 646,872.35 = 262,011.33 : x
  2. Step 2: Convert to fraction form
    468,781.65/646,872.35 = 262,011.33/x
  3. Step 3: Cross multiply
    468,781.65x = 646,872.35 × 262,011.33
  4. Step 4: Simplify right side
    468,781.65x = 169,487,883,453.67
  5. Step 5: Solve for x
    x = 169,487,883,453.67/468,781.65
  6. Step 6: Final answer
    x = 361,549.74

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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.