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Finding the Fourth Proportional to 362,891.20, 543,680.70 and 310,403.20

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Solution

The fourth proportional to 362,891.20, 543,680.70 and 310,403.20 is: 465,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,891.20 : 543,680.70 = 310,403.20 : x
  2. Step 2: Convert to fraction form
    362,891.20/543,680.70 = 310,403.20/x
  3. Step 3: Cross multiply
    362,891.20x = 543,680.70 × 310,403.20
  4. Step 4: Simplify right side
    362,891.20x = 168,760,229,058.24
  5. Step 5: Solve for x
    x = 168,760,229,058.24/362,891.20
  6. Step 6: Final answer
    x = 465,043.60

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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.