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Finding the Fourth Proportional to 308,229.40, 462,302.28 and 83,604.28

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Solution

The fourth proportional to 308,229.40, 462,302.28 and 83,604.28 is: 125,395.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,229.40 : 462,302.28 = 83,604.28 : x
  2. Step 2: Convert to fraction form
    308,229.40/462,302.28 = 83,604.28/x
  3. Step 3: Cross multiply
    308,229.40x = 462,302.28 × 83,604.28
  4. Step 4: Simplify right side
    308,229.40x = 38,650,449,261.76
  5. Step 5: Solve for x
    x = 38,650,449,261.76/308,229.40
  6. Step 6: Final answer
    x = 125,395.08

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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.