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Finding the Fourth Proportional to 362,428.40, 543,642.60 and 344,932.40

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Solution

The fourth proportional to 362,428.40, 543,642.60 and 344,932.40 is: 517,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,428.40 : 543,642.60 = 344,932.40 : x
  2. Step 2: Convert to fraction form
    362,428.40/543,642.60 = 344,932.40/x
  3. Step 3: Cross multiply
    362,428.40x = 543,642.60 × 344,932.40
  4. Step 4: Simplify right side
    362,428.40x = 187,519,946,760.24
  5. Step 5: Solve for x
    x = 187,519,946,760.24/362,428.40
  6. Step 6: Final answer
    x = 517,398.60

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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.