Home / 623,915.09-861,002.83-337,435.18

Finding the Fourth Proportional to 623,915.09, 861,002.83 and 337,435.18

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Solution

The fourth proportional to 623,915.09, 861,002.83 and 337,435.18 is: 465,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,915.09 : 861,002.83 = 337,435.18 : x
  2. Step 2: Convert to fraction form
    623,915.09/861,002.83 = 337,435.18/x
  3. Step 3: Cross multiply
    623,915.09x = 861,002.83 × 337,435.18
  4. Step 4: Simplify right side
    623,915.09x = 290,532,644,921.56
  5. Step 5: Solve for x
    x = 290,532,644,921.56/623,915.09
  6. Step 6: Final answer
    x = 465,660.55

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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.