Home / 1,781,998.20-2,672,997.30-519,953.40

Finding the Fourth Proportional to 1,781,998.20, 2,672,997.30 and 519,953.40

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Solution

The fourth proportional to 1,781,998.20, 2,672,997.30 and 519,953.40 is: 779,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,998.20 : 2,672,997.30 = 519,953.40 : x
  2. Step 2: Convert to fraction form
    1,781,998.20/2,672,997.30 = 519,953.40/x
  3. Step 3: Cross multiply
    1,781,998.20x = 2,672,997.30 × 519,953.40
  4. Step 4: Simplify right side
    1,781,998.20x = 1,389,834,034,325.82
  5. Step 5: Solve for x
    x = 1,389,834,034,325.82/1,781,998.20
  6. Step 6: Final answer
    x = 779,930.10

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Similar ratio
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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.