Home / 1,280,616.93-1,920,856.14-649,514.34

Finding the Fourth Proportional to 1,280,616.93, 1,920,856.14 and 649,514.34

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Solution

The fourth proportional to 1,280,616.93, 1,920,856.14 and 649,514.34 is: 974,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,616.93 : 1,920,856.14 = 649,514.34 : x
  2. Step 2: Convert to fraction form
    1,280,616.93/1,920,856.14 = 649,514.34/x
  3. Step 3: Cross multiply
    1,280,616.93x = 1,920,856.14 × 649,514.34
  4. Step 4: Simplify right side
    1,280,616.93x = 1,247,623,608,007.05
  5. Step 5: Solve for x
    x = 1,247,623,608,007.05/1,280,616.93
  6. Step 6: Final answer
    x = 974,236.38

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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.