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Finding the Fourth Proportional to 669,147.16, 923,398.05 and 363,216.95

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Solution

The fourth proportional to 669,147.16, 923,398.05 and 363,216.95 is: 501,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,147.16 : 923,398.05 = 363,216.95 : x
  2. Step 2: Convert to fraction form
    669,147.16/923,398.05 = 363,216.95/x
  3. Step 3: Cross multiply
    669,147.16x = 923,398.05 × 363,216.95
  4. Step 4: Simplify right side
    669,147.16x = 335,393,824,757.40
  5. Step 5: Solve for x
    x = 335,393,824,757.40/669,147.16
  6. Step 6: Final answer
    x = 501,225.81

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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.