Home / 863,646.72-1,295,189.39-287,115.24

Finding the Fourth Proportional to 863,646.72, 1,295,189.39 and 287,115.24

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Solution

The fourth proportional to 863,646.72, 1,295,189.39 and 287,115.24 is: 430,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,646.72 : 1,295,189.39 = 287,115.24 : x
  2. Step 2: Convert to fraction form
    863,646.72/1,295,189.39 = 287,115.24/x
  3. Step 3: Cross multiply
    863,646.72x = 1,295,189.39 × 287,115.24
  4. Step 4: Simplify right side
    863,646.72x = 371,868,612,555.30
  5. Step 5: Solve for x
    x = 371,868,612,555.30/863,646.72
  6. Step 6: Final answer
    x = 430,579.55

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Double scale
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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.