Home / 2,910,385.76-4,015,799.20-1,621,194.08

Finding the Fourth Proportional to 2,910,385.76, 4,015,799.20 and 1,621,194.08

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Solution

The fourth proportional to 2,910,385.76, 4,015,799.20 and 1,621,194.08 is: 2,236,950.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910,385.76 : 4,015,799.20 = 1,621,194.08 : x
  2. Step 2: Convert to fraction form
    2,910,385.76/4,015,799.20 = 1,621,194.08/x
  3. Step 3: Cross multiply
    2,910,385.76x = 4,015,799.20 × 1,621,194.08
  4. Step 4: Simplify right side
    2,910,385.76x = 6,510,389,889,508.74
  5. Step 5: Solve for x
    x = 6,510,389,889,508.74/2,910,385.76
  6. Step 6: Final answer
    x = 2,236,950.85

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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.