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Finding the Fourth Proportional to 575,618.40, 861,872.40 and 451,202.40

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Solution

The fourth proportional to 575,618.40, 861,872.40 and 451,202.40 is: 675,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,618.40 : 861,872.40 = 451,202.40 : x
  2. Step 2: Convert to fraction form
    575,618.40/861,872.40 = 451,202.40/x
  3. Step 3: Cross multiply
    575,618.40x = 861,872.40 × 451,202.40
  4. Step 4: Simplify right side
    575,618.40x = 388,878,895,373.76
  5. Step 5: Solve for x
    x = 388,878,895,373.76/575,618.40
  6. Step 6: Final answer
    x = 675,584.55

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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.