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Finding the Fourth Proportional to 669,597.17, 923,900.33 and 397,756.72

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Solution

The fourth proportional to 669,597.17, 923,900.33 and 397,756.72 is: 548,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,597.17 : 923,900.33 = 397,756.72 : x
  2. Step 2: Convert to fraction form
    669,597.17/923,900.33 = 397,756.72/x
  3. Step 3: Cross multiply
    669,597.17x = 923,900.33 × 397,756.72
  4. Step 4: Simplify right side
    669,597.17x = 367,487,561,242.61
  5. Step 5: Solve for x
    x = 367,487,561,242.61/669,597.17
  6. Step 6: Final answer
    x = 548,818.87

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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.