Home / 641,734.60-885,334.20-369,656.76

Finding the Fourth Proportional to 641,734.60, 885,334.20 and 369,656.76

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Solution

The fourth proportional to 641,734.60, 885,334.20 and 369,656.76 is: 509,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,734.60 : 885,334.20 = 369,656.76 : x
  2. Step 2: Convert to fraction form
    641,734.60/885,334.20 = 369,656.76/x
  3. Step 3: Cross multiply
    641,734.60x = 885,334.20 × 369,656.76
  4. Step 4: Simplify right side
    641,734.60x = 327,269,775,902.30
  5. Step 5: Solve for x
    x = 327,269,775,902.30/641,734.60
  6. Step 6: Final answer
    x = 509,976.83

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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.