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Finding the Fourth Proportional to 484,718.40, 725,522.40 and 344,750.40

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Solution

The fourth proportional to 484,718.40, 725,522.40 and 344,750.40 is: 516,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,718.40 : 725,522.40 = 344,750.40 : x
  2. Step 2: Convert to fraction form
    484,718.40/725,522.40 = 344,750.40/x
  3. Step 3: Cross multiply
    484,718.40x = 725,522.40 × 344,750.40
  4. Step 4: Simplify right side
    484,718.40x = 250,124,137,608.96
  5. Step 5: Solve for x
    x = 250,124,137,608.96/484,718.40
  6. Step 6: Final answer
    x = 516,019.48

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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.