Home / 823,214.18-1,234,821.23-542,665.82

Finding the Fourth Proportional to 823,214.18, 1,234,821.23 and 542,665.82

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Solution

The fourth proportional to 823,214.18, 1,234,821.23 and 542,665.82 is: 813,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,214.18 : 1,234,821.23 = 542,665.82 : x
  2. Step 2: Convert to fraction form
    823,214.18/1,234,821.23 = 542,665.82/x
  3. Step 3: Cross multiply
    823,214.18x = 1,234,821.23 × 542,665.82
  4. Step 4: Simplify right side
    823,214.18x = 670,095,275,331.36
  5. Step 5: Solve for x
    x = 670,095,275,331.36/823,214.18
  6. Step 6: Final answer
    x = 813,998.70

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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.