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Finding the Fourth Proportional to 609,760.60, 913,643.08 and 369,145.19

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Solution

The fourth proportional to 609,760.60, 913,643.08 and 369,145.19 is: 553,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,760.60 : 913,643.08 = 369,145.19 : x
  2. Step 2: Convert to fraction form
    609,760.60/913,643.08 = 369,145.19/x
  3. Step 3: Cross multiply
    609,760.60x = 913,643.08 × 369,145.19
  4. Step 4: Simplify right side
    609,760.60x = 337,266,949,720.03
  5. Step 5: Solve for x
    x = 337,266,949,720.03/609,760.60
  6. Step 6: Final answer
    x = 553,113.72

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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.