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Finding the Fourth Proportional to 344,549.20, 515,803.20 and 256,194.40

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Solution

The fourth proportional to 344,549.20, 515,803.20 and 256,194.40 is: 383,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,549.20 : 515,803.20 = 256,194.40 : x
  2. Step 2: Convert to fraction form
    344,549.20/515,803.20 = 256,194.40/x
  3. Step 3: Cross multiply
    344,549.20x = 515,803.20 × 256,194.40
  4. Step 4: Simplify right side
    344,549.20x = 132,145,891,342.08
  5. Step 5: Solve for x
    x = 132,145,891,342.08/344,549.20
  6. Step 6: Final answer
    x = 383,532.72

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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.