Home / 2,630,103.40-3,945,155.10-857,175.40

Finding the Fourth Proportional to 2,630,103.40, 3,945,155.10 and 857,175.40

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Solution

The fourth proportional to 2,630,103.40, 3,945,155.10 and 857,175.40 is: 1,285,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630,103.40 : 3,945,155.10 = 857,175.40 : x
  2. Step 2: Convert to fraction form
    2,630,103.40/3,945,155.10 = 857,175.40/x
  3. Step 3: Cross multiply
    2,630,103.40x = 3,945,155.10 × 857,175.40
  4. Step 4: Simplify right side
    2,630,103.40x = 3,381,689,900,904.54
  5. Step 5: Solve for x
    x = 3,381,689,900,904.54/2,630,103.40
  6. Step 6: Final answer
    x = 1,285,763.10

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Double scale
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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.