Home / 981,413.01-1,354,355.64-551,689.38

Finding the Fourth Proportional to 981,413.01, 1,354,355.64 and 551,689.38

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Solution

The fourth proportional to 981,413.01, 1,354,355.64 and 551,689.38 is: 761,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,413.01 : 1,354,355.64 = 551,689.38 : x
  2. Step 2: Convert to fraction form
    981,413.01/1,354,355.64 = 551,689.38/x
  3. Step 3: Cross multiply
    981,413.01x = 1,354,355.64 × 551,689.38
  4. Step 4: Simplify right side
    981,413.01x = 747,183,623,331.10
  5. Step 5: Solve for x
    x = 747,183,623,331.10/981,413.01
  6. Step 6: Final answer
    x = 761,334.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.