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Finding the Fourth Proportional to 418,253.61, 577,193.51 and 227,267.02

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Solution

The fourth proportional to 418,253.61, 577,193.51 and 227,267.02 is: 313,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,253.61 : 577,193.51 = 227,267.02 : x
  2. Step 2: Convert to fraction form
    418,253.61/577,193.51 = 227,267.02/x
  3. Step 3: Cross multiply
    418,253.61x = 577,193.51 × 227,267.02
  4. Step 4: Simplify right side
    418,253.61x = 131,177,046,401.72
  5. Step 5: Solve for x
    x = 131,177,046,401.72/418,253.61
  6. Step 6: Final answer
    x = 313,630.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.