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Finding the Fourth Proportional to 574,321.66, 861,980.33 and 572,993.06

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Solution

The fourth proportional to 574,321.66, 861,980.33 and 572,993.06 is: 859,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,321.66 : 861,980.33 = 572,993.06 : x
  2. Step 2: Convert to fraction form
    574,321.66/861,980.33 = 572,993.06/x
  3. Step 3: Cross multiply
    574,321.66x = 861,980.33 × 572,993.06
  4. Step 4: Simplify right side
    574,321.66x = 493,908,744,069.09
  5. Step 5: Solve for x
    x = 493,908,744,069.09/574,321.66
  6. Step 6: Final answer
    x = 859,986.28

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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.