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Finding the Fourth Proportional to 362,885.20, 543,671.70 and 310,397.20

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Solution

The fourth proportional to 362,885.20, 543,671.70 and 310,397.20 is: 465,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,885.20 : 543,671.70 = 310,397.20 : x
  2. Step 2: Convert to fraction form
    362,885.20/543,671.70 = 310,397.20/x
  3. Step 3: Cross multiply
    362,885.20x = 543,671.70 × 310,397.20
  4. Step 4: Simplify right side
    362,885.20x = 168,754,173,399.24
  5. Step 5: Solve for x
    x = 168,754,173,399.24/362,885.20
  6. Step 6: Final answer
    x = 465,034.60

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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.