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Finding the Fourth Proportional to 418,511.76, 577,552.80 and 227,525.88

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Solution

The fourth proportional to 418,511.76, 577,552.80 and 227,525.88 is: 313,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,511.76 : 577,552.80 = 227,525.88 : x
  2. Step 2: Convert to fraction form
    418,511.76/577,552.80 = 227,525.88/x
  3. Step 3: Cross multiply
    418,511.76x = 577,552.80 × 227,525.88
  4. Step 4: Simplify right side
    418,511.76x = 131,408,209,066.46
  5. Step 5: Solve for x
    x = 131,408,209,066.46/418,511.76
  6. Step 6: Final answer
    x = 313,989.29

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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.