Home / 1,919,422.20-2,878,355.70-656,599.80

Finding the Fourth Proportional to 1,919,422.20, 2,878,355.70 and 656,599.80

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Solution

The fourth proportional to 1,919,422.20, 2,878,355.70 and 656,599.80 is: 984,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,422.20 : 2,878,355.70 = 656,599.80 : x
  2. Step 2: Convert to fraction form
    1,919,422.20/2,878,355.70 = 656,599.80/x
  3. Step 3: Cross multiply
    1,919,422.20x = 2,878,355.70 × 656,599.80
  4. Step 4: Simplify right side
    1,919,422.20x = 1,889,927,776,948.86
  5. Step 5: Solve for x
    x = 1,889,927,776,948.86/1,919,422.20
  6. Step 6: Final answer
    x = 984,633.70

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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.