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Finding the Fourth Proportional to 362,342.20, 542,857.20 and 309,854.20

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Solution

The fourth proportional to 362,342.20, 542,857.20 and 309,854.20 is: 464,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,342.20 : 542,857.20 = 309,854.20 : x
  2. Step 2: Convert to fraction form
    362,342.20/542,857.20 = 309,854.20/x
  3. Step 3: Cross multiply
    362,342.20x = 542,857.20 × 309,854.20
  4. Step 4: Simplify right side
    362,342.20x = 168,206,583,420.24
  5. Step 5: Solve for x
    x = 168,206,583,420.24/362,342.20
  6. Step 6: Final answer
    x = 464,220.24

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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.