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Finding the Fourth Proportional to 577,805.40, 866,708.10 and 151,340.40

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Solution

The fourth proportional to 577,805.40, 866,708.10 and 151,340.40 is: 227,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,805.40 : 866,708.10 = 151,340.40 : x
  2. Step 2: Convert to fraction form
    577,805.40/866,708.10 = 151,340.40/x
  3. Step 3: Cross multiply
    577,805.40x = 866,708.10 × 151,340.40
  4. Step 4: Simplify right side
    577,805.40x = 131,167,950,537.24
  5. Step 5: Solve for x
    x = 131,167,950,537.24/577,805.40
  6. Step 6: Final answer
    x = 227,010.60

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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.