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Finding the Fourth Proportional to 432,953.20, 650,304.60 and 418,081.60

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Solution

The fourth proportional to 432,953.20, 650,304.60 and 418,081.60 is: 627,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,953.20 : 650,304.60 = 418,081.60 : x
  2. Step 2: Convert to fraction form
    432,953.20/650,304.60 = 418,081.60/x
  3. Step 3: Cross multiply
    432,953.20x = 650,304.60 × 418,081.60
  4. Step 4: Simplify right side
    432,953.20x = 271,880,387,655.36
  5. Step 5: Solve for x
    x = 271,880,387,655.36/432,953.20
  6. Step 6: Final answer
    x = 627,967.15

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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.