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Finding the Fourth Proportional to 693,915.87, 957,868.16 and 452,257.23

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Solution

The fourth proportional to 693,915.87, 957,868.16 and 452,257.23 is: 624,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,915.87 : 957,868.16 = 452,257.23 : x
  2. Step 2: Convert to fraction form
    693,915.87/957,868.16 = 452,257.23/x
  3. Step 3: Cross multiply
    693,915.87x = 957,868.16 × 452,257.23
  4. Step 4: Simplify right side
    693,915.87x = 433,202,798,485.51
  5. Step 5: Solve for x
    x = 433,202,798,485.51/693,915.87
  6. Step 6: Final answer
    x = 624,287.20

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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.