Home / 806,005.88-1,112,288.09-443,421.93

Finding the Fourth Proportional to 806,005.88, 1,112,288.09 and 443,421.93

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Solution

The fourth proportional to 806,005.88, 1,112,288.09 and 443,421.93 is: 611,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,005.88 : 1,112,288.09 = 443,421.93 : x
  2. Step 2: Convert to fraction form
    806,005.88/1,112,288.09 = 443,421.93/x
  3. Step 3: Cross multiply
    806,005.88x = 1,112,288.09 × 443,421.93
  4. Step 4: Simplify right side
    806,005.88x = 493,212,929,366.70
  5. Step 5: Solve for x
    x = 493,212,929,366.70/806,005.88
  6. Step 6: Final answer
    x = 611,922.25

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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.