Home / 855,683.54-1,281,680.12-805,378.28

Finding the Fourth Proportional to 855,683.54, 1,281,680.12 and 805,378.28

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Solution

The fourth proportional to 855,683.54, 1,281,680.12 and 805,378.28 is: 1,206,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,683.54 : 1,281,680.12 = 805,378.28 : x
  2. Step 2: Convert to fraction form
    855,683.54/1,281,680.12 = 805,378.28/x
  3. Step 3: Cross multiply
    855,683.54x = 1,281,680.12 × 805,378.28
  4. Step 4: Simplify right side
    855,683.54x = 1,032,237,335,773.44
  5. Step 5: Solve for x
    x = 1,032,237,335,773.44/855,683.54
  6. Step 6: Final answer
    x = 1,206,330.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.