Home / 612,053.12-844,579.53-340,103.78

Finding the Fourth Proportional to 612,053.12, 844,579.53 and 340,103.78

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Solution

The fourth proportional to 612,053.12, 844,579.53 and 340,103.78 is: 469,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,053.12 : 844,579.53 = 340,103.78 : x
  2. Step 2: Convert to fraction form
    612,053.12/844,579.53 = 340,103.78/x
  3. Step 3: Cross multiply
    612,053.12x = 844,579.53 × 340,103.78
  4. Step 4: Simplify right side
    612,053.12x = 287,244,686,440.73
  5. Step 5: Solve for x
    x = 287,244,686,440.73/612,053.12
  6. Step 6: Final answer
    x = 469,313.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.