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Finding the Fourth Proportional to 391,256.00, 539,938.88 and 227,908.31

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Solution

The fourth proportional to 391,256.00, 539,938.88 and 227,908.31 is: 314,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,256.00 : 539,938.88 = 227,908.31 : x
  2. Step 2: Convert to fraction form
    391,256.00/539,938.88 = 227,908.31/x
  3. Step 3: Cross multiply
    391,256.00x = 539,938.88 × 227,908.31
  4. Step 4: Simplify right side
    391,256.00x = 123,056,559,563.71
  5. Step 5: Solve for x
    x = 123,056,559,563.71/391,256.00
  6. Step 6: Final answer
    x = 314,516.73

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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.