Home / 856,168.40-1,181,373.56-512,146.49

Finding the Fourth Proportional to 856,168.40, 1,181,373.56 and 512,146.49

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Solution

The fourth proportional to 856,168.40, 1,181,373.56 and 512,146.49 is: 706,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,168.40 : 1,181,373.56 = 512,146.49 : x
  2. Step 2: Convert to fraction form
    856,168.40/1,181,373.56 = 512,146.49/x
  3. Step 3: Cross multiply
    856,168.40x = 1,181,373.56 × 512,146.49
  4. Step 4: Simplify right side
    856,168.40x = 605,036,313,665.20
  5. Step 5: Solve for x
    x = 605,036,313,665.20/856,168.40
  6. Step 6: Final answer
    x = 706,679.10

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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.