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Finding the Fourth Proportional to 418,234.64, 577,155.48 and 227,249.40

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Solution

The fourth proportional to 418,234.64, 577,155.48 and 227,249.40 is: 313,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,234.64 : 577,155.48 = 227,249.40 : x
  2. Step 2: Convert to fraction form
    418,234.64/577,155.48 = 227,249.40/x
  3. Step 3: Cross multiply
    418,234.64x = 577,155.48 × 227,249.40
  4. Step 4: Simplify right side
    418,234.64x = 131,158,236,536.71
  5. Step 5: Solve for x
    x = 131,158,236,536.71/418,234.64
  6. Step 6: Final answer
    x = 313,599.65

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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.