Home / 841,967.75-1,161,916.61-479,391.78

Finding the Fourth Proportional to 841,967.75, 1,161,916.61 and 479,391.78

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Solution

The fourth proportional to 841,967.75, 1,161,916.61 and 479,391.78 is: 661,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,967.75 : 1,161,916.61 = 479,391.78 : x
  2. Step 2: Convert to fraction form
    841,967.75/1,161,916.61 = 479,391.78/x
  3. Step 3: Cross multiply
    841,967.75x = 1,161,916.61 × 479,391.78
  4. Step 4: Simplify right side
    841,967.75x = 557,013,273,839.69
  5. Step 5: Solve for x
    x = 557,013,273,839.69/841,967.75
  6. Step 6: Final answer
    x = 661,561.29

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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.