Home / 817,972.47-1,227,519.30-285,493.50

Finding the Fourth Proportional to 817,972.47, 1,227,519.30 and 285,493.50

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Solution

The fourth proportional to 817,972.47, 1,227,519.30 and 285,493.50 is: 428,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,972.47 : 1,227,519.30 = 285,493.50 : x
  2. Step 2: Convert to fraction form
    817,972.47/1,227,519.30 = 285,493.50/x
  3. Step 3: Cross multiply
    817,972.47x = 1,227,519.30 × 285,493.50
  4. Step 4: Simplify right side
    817,972.47x = 350,448,776,534.26
  5. Step 5: Solve for x
    x = 350,448,776,534.26/817,972.47
  6. Step 6: Final answer
    x = 428,435.91

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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.