Home / 806,171.71-1,112,483.61-438,650.36

Finding the Fourth Proportional to 806,171.71, 1,112,483.61 and 438,650.36

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Solution

The fourth proportional to 806,171.71, 1,112,483.61 and 438,650.36 is: 605,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,171.71 : 1,112,483.61 = 438,650.36 : x
  2. Step 2: Convert to fraction form
    806,171.71/1,112,483.61 = 438,650.36/x
  3. Step 3: Cross multiply
    806,171.71x = 1,112,483.61 × 438,650.36
  4. Step 4: Simplify right side
    806,171.71x = 487,991,335,070.96
  5. Step 5: Solve for x
    x = 487,991,335,070.96/806,171.71
  6. Step 6: Final answer
    x = 605,319.35

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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.