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Finding the Fourth Proportional to 418,270.76, 577,166.80 and 236,943.85

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Solution

The fourth proportional to 418,270.76, 577,166.80 and 236,943.85 is: 326,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,270.76 : 577,166.80 = 236,943.85 : x
  2. Step 2: Convert to fraction form
    418,270.76/577,166.80 = 236,943.85/x
  3. Step 3: Cross multiply
    418,270.76x = 577,166.80 × 236,943.85
  4. Step 4: Simplify right side
    418,270.76x = 136,756,123,684.18
  5. Step 5: Solve for x
    x = 136,756,123,684.18/418,270.76
  6. Step 6: Final answer
    x = 326,955.97

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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.