Home / 1,386,883.60-2,080,325.40-817,680.40

Finding the Fourth Proportional to 1,386,883.60, 2,080,325.40 and 817,680.40

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Solution

The fourth proportional to 1,386,883.60, 2,080,325.40 and 817,680.40 is: 1,226,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,883.60 : 2,080,325.40 = 817,680.40 : x
  2. Step 2: Convert to fraction form
    1,386,883.60/2,080,325.40 = 817,680.40/x
  3. Step 3: Cross multiply
    1,386,883.60x = 2,080,325.40 × 817,680.40
  4. Step 4: Simplify right side
    1,386,883.60x = 1,701,041,305,202.16
  5. Step 5: Solve for x
    x = 1,701,041,305,202.16/1,386,883.60
  6. Step 6: Final answer
    x = 1,226,520.60

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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.