Home / 1,299,545.80-1,949,027.10-853,397.80

Finding the Fourth Proportional to 1,299,545.80, 1,949,027.10 and 853,397.80

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Solution

The fourth proportional to 1,299,545.80, 1,949,027.10 and 853,397.80 is: 1,279,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,545.80 : 1,949,027.10 = 853,397.80 : x
  2. Step 2: Convert to fraction form
    1,299,545.80/1,949,027.10 = 853,397.80/x
  3. Step 3: Cross multiply
    1,299,545.80x = 1,949,027.10 × 853,397.80
  4. Step 4: Simplify right side
    1,299,545.80x = 1,663,295,439,280.38
  5. Step 5: Solve for x
    x = 1,663,295,439,280.38/1,299,545.80
  6. Step 6: Final answer
    x = 1,279,905.21

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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.