Home / 806,621.60-1,210,515.60-451,258.40

Finding the Fourth Proportional to 806,621.60, 1,210,515.60 and 451,258.40

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Solution

The fourth proportional to 806,621.60, 1,210,515.60 and 451,258.40 is: 677,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,621.60 : 1,210,515.60 = 451,258.40 : x
  2. Step 2: Convert to fraction form
    806,621.60/1,210,515.60 = 451,258.40/x
  3. Step 3: Cross multiply
    806,621.60x = 1,210,515.60 × 451,258.40
  4. Step 4: Simplify right side
    806,621.60x = 546,255,332,831.04
  5. Step 5: Solve for x
    x = 546,255,332,831.04/806,621.60
  6. Step 6: Final answer
    x = 677,213.87

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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.