Home / 805,251.75-1,111,268.69-437,753.61

Finding the Fourth Proportional to 805,251.75, 1,111,268.69 and 437,753.61

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Solution

The fourth proportional to 805,251.75, 1,111,268.69 and 437,753.61 is: 604,111.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,251.75 : 1,111,268.69 = 437,753.61 : x
  2. Step 2: Convert to fraction form
    805,251.75/1,111,268.69 = 437,753.61/x
  3. Step 3: Cross multiply
    805,251.75x = 1,111,268.69 × 437,753.61
  4. Step 4: Simplify right side
    805,251.75x = 486,461,878,538.70
  5. Step 5: Solve for x
    x = 486,461,878,538.70/805,251.75
  6. Step 6: Final answer
    x = 604,111.54

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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.