Home / 296,923.28-445,459.80-86,579.60

Finding the Fourth Proportional to 296,923.28, 445,459.80 and 86,579.60

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Solution

The fourth proportional to 296,923.28, 445,459.80 and 86,579.60 is: 129,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,923.28 : 445,459.80 = 86,579.60 : x
  2. Step 2: Convert to fraction form
    296,923.28/445,459.80 = 86,579.60/x
  3. Step 3: Cross multiply
    296,923.28x = 445,459.80 × 86,579.60
  4. Step 4: Simplify right side
    296,923.28x = 38,567,731,300.08
  5. Step 5: Solve for x
    x = 38,567,731,300.08/296,923.28
  6. Step 6: Final answer
    x = 129,891.23

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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.