Home / 813,708.45-1,122,984.20-451,246.01

Finding the Fourth Proportional to 813,708.45, 1,122,984.20 and 451,246.01

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Solution

The fourth proportional to 813,708.45, 1,122,984.20 and 451,246.01 is: 622,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,708.45 : 1,122,984.20 = 451,246.01 : x
  2. Step 2: Convert to fraction form
    813,708.45/1,122,984.20 = 451,246.01/x
  3. Step 3: Cross multiply
    813,708.45x = 1,122,984.20 × 451,246.01
  4. Step 4: Simplify right side
    813,708.45x = 506,742,135,056.24
  5. Step 5: Solve for x
    x = 506,742,135,056.24/813,708.45
  6. Step 6: Final answer
    x = 622,756.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.