Home / 803,872.88-1,205,993.28-348,540.20

Finding the Fourth Proportional to 803,872.88, 1,205,993.28 and 348,540.20

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Solution

The fourth proportional to 803,872.88, 1,205,993.28 and 348,540.20 is: 522,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,872.88 : 1,205,993.28 = 348,540.20 : x
  2. Step 2: Convert to fraction form
    803,872.88/1,205,993.28 = 348,540.20/x
  3. Step 3: Cross multiply
    803,872.88x = 1,205,993.28 × 348,540.20
  4. Step 4: Simplify right side
    803,872.88x = 420,337,139,009.86
  5. Step 5: Solve for x
    x = 420,337,139,009.86/803,872.88
  6. Step 6: Final answer
    x = 522,890.06

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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.