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Finding the Fourth Proportional to 418,293.86, 577,245.08 and 227,306.79

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Solution

The fourth proportional to 418,293.86, 577,245.08 and 227,306.79 is: 313,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,293.86 : 577,245.08 = 227,306.79 : x
  2. Step 2: Convert to fraction form
    418,293.86/577,245.08 = 227,306.79/x
  3. Step 3: Cross multiply
    418,293.86x = 577,245.08 × 227,306.79
  4. Step 4: Simplify right side
    418,293.86x = 131,211,726,746.36
  5. Step 5: Solve for x
    x = 131,211,726,746.36/418,293.86
  6. Step 6: Final answer
    x = 313,683.13

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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.