Home / 852,938.93-1,280,145.31-347,778.38

Finding the Fourth Proportional to 852,938.93, 1,280,145.31 and 347,778.38

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Solution

The fourth proportional to 852,938.93, 1,280,145.31 and 347,778.38 is: 521,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,938.93 : 1,280,145.31 = 347,778.38 : x
  2. Step 2: Convert to fraction form
    852,938.93/1,280,145.31 = 347,778.38/x
  3. Step 3: Cross multiply
    852,938.93x = 1,280,145.31 × 347,778.38
  4. Step 4: Simplify right side
    852,938.93x = 445,206,864,407.32
  5. Step 5: Solve for x
    x = 445,206,864,407.32/852,938.93
  6. Step 6: Final answer
    x = 521,968.04

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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.