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Finding the Fourth Proportional to 344,657.70, 516,986.55 and 256,084.20

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Solution

The fourth proportional to 344,657.70, 516,986.55 and 256,084.20 is: 384,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,657.70 : 516,986.55 = 256,084.20 : x
  2. Step 2: Convert to fraction form
    344,657.70/516,986.55 = 256,084.20/x
  3. Step 3: Cross multiply
    344,657.70x = 516,986.55 × 256,084.20
  4. Step 4: Simplify right side
    344,657.70x = 132,392,087,067.51
  5. Step 5: Solve for x
    x = 132,392,087,067.51/344,657.70
  6. Step 6: Final answer
    x = 384,126.30

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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.