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Finding the Fourth Proportional to 523,747.36, 722,715.24 and 351,630.46

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Solution

The fourth proportional to 523,747.36, 722,715.24 and 351,630.46 is: 485,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,747.36 : 722,715.24 = 351,630.46 : x
  2. Step 2: Convert to fraction form
    523,747.36/722,715.24 = 351,630.46/x
  3. Step 3: Cross multiply
    523,747.36x = 722,715.24 × 351,630.46
  4. Step 4: Simplify right side
    523,747.36x = 254,128,692,290.21
  5. Step 5: Solve for x
    x = 254,128,692,290.21/523,747.36
  6. Step 6: Final answer
    x = 485,212.36

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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.