Home / 828,807.60-1,243,211.40-822,902.70

Finding the Fourth Proportional to 828,807.60, 1,243,211.40 and 822,902.70

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Solution

The fourth proportional to 828,807.60, 1,243,211.40 and 822,902.70 is: 1,234,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,807.60 : 1,243,211.40 = 822,902.70 : x
  2. Step 2: Convert to fraction form
    828,807.60/1,243,211.40 = 822,902.70/x
  3. Step 3: Cross multiply
    828,807.60x = 1,243,211.40 × 822,902.70
  4. Step 4: Simplify right side
    828,807.60x = 1,023,042,017,730.78
  5. Step 5: Solve for x
    x = 1,023,042,017,730.78/828,807.60
  6. Step 6: Final answer
    x = 1,234,354.05

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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.