Home / 1,969,920.80-2,954,881.20-771,444.80

Finding the Fourth Proportional to 1,969,920.80, 2,954,881.20 and 771,444.80

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Solution

The fourth proportional to 1,969,920.80, 2,954,881.20 and 771,444.80 is: 1,157,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,920.80 : 2,954,881.20 = 771,444.80 : x
  2. Step 2: Convert to fraction form
    1,969,920.80/2,954,881.20 = 771,444.80/x
  3. Step 3: Cross multiply
    1,969,920.80x = 2,954,881.20 × 771,444.80
  4. Step 4: Simplify right side
    1,969,920.80x = 2,279,527,736,357.76
  5. Step 5: Solve for x
    x = 2,279,527,736,357.76/1,969,920.80
  6. Step 6: Final answer
    x = 1,157,167.20

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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.