Home / 1,280,835.18-1,921,183.52-649,732.59

Finding the Fourth Proportional to 1,280,835.18, 1,921,183.52 and 649,732.59

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Solution

The fourth proportional to 1,280,835.18, 1,921,183.52 and 649,732.59 is: 974,563.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,835.18 : 1,921,183.52 = 649,732.59 : x
  2. Step 2: Convert to fraction form
    1,280,835.18/1,921,183.52 = 649,732.59/x
  3. Step 3: Cross multiply
    1,280,835.18x = 1,921,183.52 × 649,732.59
  4. Step 4: Simplify right side
    1,280,835.18x = 1,248,255,541,066.25
  5. Step 5: Solve for x
    x = 1,248,255,541,066.25/1,280,835.18
  6. Step 6: Final answer
    x = 974,563.75

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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.