Home / 684,831.60-1,027,247.40-638,175.60

Finding the Fourth Proportional to 684,831.60, 1,027,247.40 and 638,175.60

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Solution

The fourth proportional to 684,831.60, 1,027,247.40 and 638,175.60 is: 957,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,831.60 : 1,027,247.40 = 638,175.60 : x
  2. Step 2: Convert to fraction form
    684,831.60/1,027,247.40 = 638,175.60/x
  3. Step 3: Cross multiply
    684,831.60x = 1,027,247.40 × 638,175.60
  4. Step 4: Simplify right side
    684,831.60x = 655,564,225,843.44
  5. Step 5: Solve for x
    x = 655,564,225,843.44/684,831.60
  6. Step 6: Final answer
    x = 957,263.40

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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.