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Finding the Fourth Proportional to 360,478.68, 497,434.88 and 199,304.04

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Solution

The fourth proportional to 360,478.68, 497,434.88 and 199,304.04 is: 275,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,478.68 : 497,434.88 = 199,304.04 : x
  2. Step 2: Convert to fraction form
    360,478.68/497,434.88 = 199,304.04/x
  3. Step 3: Cross multiply
    360,478.68x = 497,434.88 × 199,304.04
  4. Step 4: Simplify right side
    360,478.68x = 99,140,781,220.92
  5. Step 5: Solve for x
    x = 99,140,781,220.92/360,478.68
  6. Step 6: Final answer
    x = 275,025.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.