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Finding the Fourth Proportional to 635,431.88, 953,332.30 and 256,156.88

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Solution

The fourth proportional to 635,431.88, 953,332.30 and 256,156.88 is: 384,309.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,431.88 : 953,332.30 = 256,156.88 : x
  2. Step 2: Convert to fraction form
    635,431.88/953,332.30 = 256,156.88/x
  3. Step 3: Cross multiply
    635,431.88x = 953,332.30 × 256,156.88
  4. Step 4: Simplify right side
    635,431.88x = 244,202,627,571.22
  5. Step 5: Solve for x
    x = 244,202,627,571.22/635,431.88
  6. Step 6: Final answer
    x = 384,309.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.