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Finding the Fourth Proportional to 256,292.48, 353,505.60 and 235,141.76

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Solution

The fourth proportional to 256,292.48, 353,505.60 and 235,141.76 is: 324,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,292.48 : 353,505.60 = 235,141.76 : x
  2. Step 2: Convert to fraction form
    256,292.48/353,505.60 = 235,141.76/x
  3. Step 3: Cross multiply
    256,292.48x = 353,505.60 × 235,141.76
  4. Step 4: Simplify right side
    256,292.48x = 83,123,928,953.86
  5. Step 5: Solve for x
    x = 83,123,928,953.86/256,292.48
  6. Step 6: Final answer
    x = 324,332.30

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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.