Home / 989,161.62-1,365,300.81-626,761.14

Finding the Fourth Proportional to 989,161.62, 1,365,300.81 and 626,761.14

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Solution

The fourth proportional to 989,161.62, 1,365,300.81 and 626,761.14 is: 865,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,161.62 : 1,365,300.81 = 626,761.14 : x
  2. Step 2: Convert to fraction form
    989,161.62/1,365,300.81 = 626,761.14/x
  3. Step 3: Cross multiply
    989,161.62x = 1,365,300.81 × 626,761.14
  4. Step 4: Simplify right side
    989,161.62x = 855,717,492,118.52
  5. Step 5: Solve for x
    x = 855,717,492,118.52/989,161.62
  6. Step 6: Final answer
    x = 865,093.71

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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.