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Finding the Fourth Proportional to 609,527.40, 913,963.05 and 254,139.90

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Solution

The fourth proportional to 609,527.40, 913,963.05 and 254,139.90 is: 381,073.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,527.40 : 913,963.05 = 254,139.90 : x
  2. Step 2: Convert to fraction form
    609,527.40/913,963.05 = 254,139.90/x
  3. Step 3: Cross multiply
    609,527.40x = 913,963.05 × 254,139.90
  4. Step 4: Simplify right side
    609,527.40x = 232,274,478,130.70
  5. Step 5: Solve for x
    x = 232,274,478,130.70/609,527.40
  6. Step 6: Final answer
    x = 381,073.07

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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.