Home / 782,707.05-1,174,067.78-409,459.05

Finding the Fourth Proportional to 782,707.05, 1,174,067.78 and 409,459.05

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Solution

The fourth proportional to 782,707.05, 1,174,067.78 and 409,459.05 is: 614,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,707.05 : 1,174,067.78 = 409,459.05 : x
  2. Step 2: Convert to fraction form
    782,707.05/1,174,067.78 = 409,459.05/x
  3. Step 3: Cross multiply
    782,707.05x = 1,174,067.78 × 409,459.05
  4. Step 4: Simplify right side
    782,707.05x = 480,732,675,787.11
  5. Step 5: Solve for x
    x = 480,732,675,787.11/782,707.05
  6. Step 6: Final answer
    x = 614,192.34

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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.