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Finding the Fourth Proportional to 723,996.28, 995,571.93 and 628,336.90

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Solution

The fourth proportional to 723,996.28, 995,571.93 and 628,336.90 is: 864,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,996.28 : 995,571.93 = 628,336.90 : x
  2. Step 2: Convert to fraction form
    723,996.28/995,571.93 = 628,336.90/x
  3. Step 3: Cross multiply
    723,996.28x = 995,571.93 × 628,336.90
  4. Step 4: Simplify right side
    723,996.28x = 625,554,580,289.55
  5. Step 5: Solve for x
    x = 625,554,580,289.55/723,996.28
  6. Step 6: Final answer
    x = 864,030.10

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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.