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Finding the Fourth Proportional to 508,915.58, 701,710.16 and 379,629.62

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Solution

The fourth proportional to 508,915.58, 701,710.16 and 379,629.62 is: 523,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,915.58 : 701,710.16 = 379,629.62 : x
  2. Step 2: Convert to fraction form
    508,915.58/701,710.16 = 379,629.62/x
  3. Step 3: Cross multiply
    508,915.58x = 701,710.16 × 379,629.62
  4. Step 4: Simplify right side
    508,915.58x = 266,389,955,984.24
  5. Step 5: Solve for x
    x = 266,389,955,984.24/508,915.58
  6. Step 6: Final answer
    x = 523,446.26

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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.