Home / 891,184.30-1,336,970.85-260,046.70

Finding the Fourth Proportional to 891,184.30, 1,336,970.85 and 260,046.70

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Solution

The fourth proportional to 891,184.30, 1,336,970.85 and 260,046.70 is: 390,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,184.30 : 1,336,970.85 = 260,046.70 : x
  2. Step 2: Convert to fraction form
    891,184.30/1,336,970.85 = 260,046.70/x
  3. Step 3: Cross multiply
    891,184.30x = 1,336,970.85 × 260,046.70
  4. Step 4: Simplify right side
    891,184.30x = 347,674,857,538.70
  5. Step 5: Solve for x
    x = 347,674,857,538.70/891,184.30
  6. Step 6: Final answer
    x = 390,126.78

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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.