Home / 805,314.36-1,111,305.52-442,735.60

Finding the Fourth Proportional to 805,314.36, 1,111,305.52 and 442,735.60

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Solution

The fourth proportional to 805,314.36, 1,111,305.52 and 442,735.60 is: 610,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,314.36 : 1,111,305.52 = 442,735.60 : x
  2. Step 2: Convert to fraction form
    805,314.36/1,111,305.52 = 442,735.60/x
  3. Step 3: Cross multiply
    805,314.36x = 1,111,305.52 × 442,735.60
  4. Step 4: Simplify right side
    805,314.36x = 492,014,516,180.51
  5. Step 5: Solve for x
    x = 492,014,516,180.51/805,314.36
  6. Step 6: Final answer
    x = 610,959.57

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Double scale
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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.