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Finding the Fourth Proportional to 418,775.54, 578,012.90 and 237,593.54

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Solution

The fourth proportional to 418,775.54, 578,012.90 and 237,593.54 is: 327,937.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,775.54 : 578,012.90 = 237,593.54 : x
  2. Step 2: Convert to fraction form
    418,775.54/578,012.90 = 237,593.54/x
  3. Step 3: Cross multiply
    418,775.54x = 578,012.90 × 237,593.54
  4. Step 4: Simplify right side
    418,775.54x = 137,332,131,076.67
  5. Step 5: Solve for x
    x = 137,332,131,076.67/418,775.54
  6. Step 6: Final answer
    x = 327,937.33

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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.