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Finding the Fourth Proportional to 418,509.79, 577,517.67 and 234,738.23

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Solution

The fourth proportional to 418,509.79, 577,517.67 and 234,738.23 is: 323,924.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,509.79 : 577,517.67 = 234,738.23 : x
  2. Step 2: Convert to fraction form
    418,509.79/577,517.67 = 234,738.23/x
  3. Step 3: Cross multiply
    418,509.79x = 577,517.67 × 234,738.23
  4. Step 4: Simplify right side
    418,509.79x = 135,565,475,046.41
  5. Step 5: Solve for x
    x = 135,565,475,046.41/418,509.79
  6. Step 6: Final answer
    x = 323,924.26

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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.