Home / 2,119,333.60-3,179,000.40-921,829.60

Finding the Fourth Proportional to 2,119,333.60, 3,179,000.40 and 921,829.60

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Solution

The fourth proportional to 2,119,333.60, 3,179,000.40 and 921,829.60 is: 1,382,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,333.60 : 3,179,000.40 = 921,829.60 : x
  2. Step 2: Convert to fraction form
    2,119,333.60/3,179,000.40 = 921,829.60/x
  3. Step 3: Cross multiply
    2,119,333.60x = 3,179,000.40 × 921,829.60
  4. Step 4: Simplify right side
    2,119,333.60x = 2,930,496,667,131.84
  5. Step 5: Solve for x
    x = 2,930,496,667,131.84/2,119,333.60
  6. Step 6: Final answer
    x = 1,382,744.40

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Similar ratio
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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.