Home / 941,780.85-1,412,639.52-409,301.92

Finding the Fourth Proportional to 941,780.85, 1,412,639.52 and 409,301.92

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Solution

The fourth proportional to 941,780.85, 1,412,639.52 and 409,301.92 is: 613,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,780.85 : 1,412,639.52 = 409,301.92 : x
  2. Step 2: Convert to fraction form
    941,780.85/1,412,639.52 = 409,301.92/x
  3. Step 3: Cross multiply
    941,780.85x = 1,412,639.52 × 409,301.92
  4. Step 4: Simplify right side
    941,780.85x = 578,196,067,803.88
  5. Step 5: Solve for x
    x = 578,196,067,803.88/941,780.85
  6. Step 6: Final answer
    x = 613,939.08

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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.