Home / 343,226.10-514,844.55-129,936.78

Finding the Fourth Proportional to 343,226.10, 514,844.55 and 129,936.78

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Solution

The fourth proportional to 343,226.10, 514,844.55 and 129,936.78 is: 194,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,226.10 : 514,844.55 = 129,936.78 : x
  2. Step 2: Convert to fraction form
    343,226.10/514,844.55 = 129,936.78/x
  3. Step 3: Cross multiply
    343,226.10x = 514,844.55 × 129,936.78
  4. Step 4: Simplify right side
    343,226.10x = 66,897,243,027.55
  5. Step 5: Solve for x
    x = 66,897,243,027.55/343,226.10
  6. Step 6: Final answer
    x = 194,907.21

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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.