Home / 1,260,856.10-1,891,543.35-420,011.30

Finding the Fourth Proportional to 1,260,856.10, 1,891,543.35 and 420,011.30

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Solution

The fourth proportional to 1,260,856.10, 1,891,543.35 and 420,011.30 is: 630,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,856.10 : 1,891,543.35 = 420,011.30 : x
  2. Step 2: Convert to fraction form
    1,260,856.10/1,891,543.35 = 420,011.30/x
  3. Step 3: Cross multiply
    1,260,856.10x = 1,891,543.35 × 420,011.30
  4. Step 4: Simplify right side
    1,260,856.10x = 794,469,581,439.86
  5. Step 5: Solve for x
    x = 794,469,581,439.86/1,260,856.10
  6. Step 6: Final answer
    x = 630,103.29

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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.