Home / 415,515.11-623,272.62-99,972.02

Finding the Fourth Proportional to 415,515.11, 623,272.62 and 99,972.02

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Solution

The fourth proportional to 415,515.11, 623,272.62 and 99,972.02 is: 149,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,515.11 : 623,272.62 = 99,972.02 : x
  2. Step 2: Convert to fraction form
    415,515.11/623,272.62 = 99,972.02/x
  3. Step 3: Cross multiply
    415,515.11x = 623,272.62 × 99,972.02
  4. Step 4: Simplify right side
    415,515.11x = 62,309,819,715.73
  5. Step 5: Solve for x
    x = 62,309,819,715.73/415,515.11
  6. Step 6: Final answer
    x = 149,958.01

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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.