Home / 633,968.06-874,965.62-392,328.46

Finding the Fourth Proportional to 633,968.06, 874,965.62 and 392,328.46

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Solution

The fourth proportional to 633,968.06, 874,965.62 and 392,328.46 is: 541,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,968.06 : 874,965.62 = 392,328.46 : x
  2. Step 2: Convert to fraction form
    633,968.06/874,965.62 = 392,328.46/x
  3. Step 3: Cross multiply
    633,968.06x = 874,965.62 × 392,328.46
  4. Step 4: Simplify right side
    633,968.06x = 343,273,914,247.55
  5. Step 5: Solve for x
    x = 343,273,914,247.55/633,968.06
  6. Step 6: Final answer
    x = 541,468.78

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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.