Home / 443,036.12-664,320.66-193,426.52

Finding the Fourth Proportional to 443,036.12, 664,320.66 and 193,426.52

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Solution

The fourth proportional to 443,036.12, 664,320.66 and 193,426.52 is: 290,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,036.12 : 664,320.66 = 193,426.52 : x
  2. Step 2: Convert to fraction form
    443,036.12/664,320.66 = 193,426.52/x
  3. Step 3: Cross multiply
    443,036.12x = 664,320.66 × 193,426.52
  4. Step 4: Simplify right side
    443,036.12x = 128,497,233,427.90
  5. Step 5: Solve for x
    x = 128,497,233,427.90/443,036.12
  6. Step 6: Final answer
    x = 290,037.83

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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.