Home / 699,193.53-964,915.89-393,284.18

Finding the Fourth Proportional to 699,193.53, 964,915.89 and 393,284.18

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Solution

The fourth proportional to 699,193.53, 964,915.89 and 393,284.18 is: 542,748.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,193.53 : 964,915.89 = 393,284.18 : x
  2. Step 2: Convert to fraction form
    699,193.53/964,915.89 = 393,284.18/x
  3. Step 3: Cross multiply
    699,193.53x = 964,915.89 × 393,284.18
  4. Step 4: Simplify right side
    699,193.53x = 379,486,149,743.04
  5. Step 5: Solve for x
    x = 379,486,149,743.04/699,193.53
  6. Step 6: Final answer
    x = 542,748.37

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1.5x scale

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.