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Finding the Fourth Proportional to 362,904.30, 543,319.65 and 321,432.30

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Solution

The fourth proportional to 362,904.30, 543,319.65 and 321,432.30 is: 481,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,904.30 : 543,319.65 = 321,432.30 : x
  2. Step 2: Convert to fraction form
    362,904.30/543,319.65 = 321,432.30/x
  3. Step 3: Cross multiply
    362,904.30x = 543,319.65 × 321,432.30
  4. Step 4: Simplify right side
    362,904.30x = 174,640,484,734.70
  5. Step 5: Solve for x
    x = 174,640,484,734.70/362,904.30
  6. Step 6: Final answer
    x = 481,230.13

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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.