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Finding the Fourth Proportional to 683,348.06, 943,202.71 and 392,991.35

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Solution

The fourth proportional to 683,348.06, 943,202.71 and 392,991.35 is: 542,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,348.06 : 943,202.71 = 392,991.35 : x
  2. Step 2: Convert to fraction form
    683,348.06/943,202.71 = 392,991.35/x
  3. Step 3: Cross multiply
    683,348.06x = 943,202.71 × 392,991.35
  4. Step 4: Simplify right side
    683,348.06x = 370,670,506,326.56
  5. Step 5: Solve for x
    x = 370,670,506,326.56/683,348.06
  6. Step 6: Final answer
    x = 542,432.95

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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.