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Finding the Fourth Proportional to 418,351.30, 577,302.62 and 237,065.38

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Solution

The fourth proportional to 418,351.30, 577,302.62 and 237,065.38 is: 327,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,351.30 : 577,302.62 = 237,065.38 : x
  2. Step 2: Convert to fraction form
    418,351.30/577,302.62 = 237,065.38/x
  3. Step 3: Cross multiply
    418,351.30x = 577,302.62 × 237,065.38
  4. Step 4: Simplify right side
    418,351.30x = 136,858,464,985.30
  5. Step 5: Solve for x
    x = 136,858,464,985.30/418,351.30
  6. Step 6: Final answer
    x = 327,137.66

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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.