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Finding the Fourth Proportional to 407,792.04, 612,061.65 and 218,466.15

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Solution

The fourth proportional to 407,792.04, 612,061.65 and 218,466.15 is: 327,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,792.04 : 612,061.65 = 218,466.15 : x
  2. Step 2: Convert to fraction form
    407,792.04/612,061.65 = 218,466.15/x
  3. Step 3: Cross multiply
    407,792.04x = 612,061.65 × 218,466.15
  4. Step 4: Simplify right side
    407,792.04x = 133,714,752,238.15
  5. Step 5: Solve for x
    x = 133,714,752,238.15/407,792.04
  6. Step 6: Final answer
    x = 327,899.37

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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.