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Finding the Fourth Proportional to 585,139.11, 807,482.43 and 327,019.65

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Solution

The fourth proportional to 585,139.11, 807,482.43 and 327,019.65 is: 451,281.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,139.11 : 807,482.43 = 327,019.65 : x
  2. Step 2: Convert to fraction form
    585,139.11/807,482.43 = 327,019.65/x
  3. Step 3: Cross multiply
    585,139.11x = 807,482.43 × 327,019.65
  4. Step 4: Simplify right side
    585,139.11x = 264,062,621,639.75
  5. Step 5: Solve for x
    x = 264,062,621,639.75/585,139.11
  6. Step 6: Final answer
    x = 451,281.78

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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.