Home / 1,919,822.70-2,878,956.45-657,000.30

Finding the Fourth Proportional to 1,919,822.70, 2,878,956.45 and 657,000.30

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Solution

The fourth proportional to 1,919,822.70, 2,878,956.45 and 657,000.30 is: 985,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,822.70 : 2,878,956.45 = 657,000.30 : x
  2. Step 2: Convert to fraction form
    1,919,822.70/2,878,956.45 = 657,000.30/x
  3. Step 3: Cross multiply
    1,919,822.70x = 2,878,956.45 × 657,000.30
  4. Step 4: Simplify right side
    1,919,822.70x = 1,891,475,251,336.94
  5. Step 5: Solve for x
    x = 1,891,475,251,336.94/1,919,822.70
  6. Step 6: Final answer
    x = 985,234.34

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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.