Home / 806,171.90-1,112,483.86-438,650.55

Finding the Fourth Proportional to 806,171.90, 1,112,483.86 and 438,650.55

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Solution

The fourth proportional to 806,171.90, 1,112,483.86 and 438,650.55 is: 605,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,171.90 : 1,112,483.86 = 438,650.55 : x
  2. Step 2: Convert to fraction form
    806,171.90/1,112,483.86 = 438,650.55/x
  3. Step 3: Cross multiply
    806,171.90x = 1,112,483.86 × 438,650.55
  4. Step 4: Simplify right side
    806,171.90x = 487,991,656,340.00
  5. Step 5: Solve for x
    x = 487,991,656,340.00/806,171.90
  6. Step 6: Final answer
    x = 605,319.61

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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.