Home / 1,420,699.20-1,960,110-1,012,867.44

Finding the Fourth Proportional to 1,420,699.20, 1,960,110 and 1,012,867.44

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Solution

The fourth proportional to 1,420,699.20, 1,960,110 and 1,012,867.44 is: 1,397,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,699.20 : 1,960,110 = 1,012,867.44 : x
  2. Step 2: Convert to fraction form
    1,420,699.20/1,960,110 = 1,012,867.44/x
  3. Step 3: Cross multiply
    1,420,699.20x = 1,960,110 × 1,012,867.44
  4. Step 4: Simplify right side
    1,420,699.20x = 1,985,331,597,818.40
  5. Step 5: Solve for x
    x = 1,985,331,597,818.40/1,420,699.20
  6. Step 6: Final answer
    x = 1,397,432.76

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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.