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Finding the Fourth Proportional to 669,396, 923,772.96 and 367,596.48

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Solution

The fourth proportional to 669,396, 923,772.96 and 367,596.48 is: 507,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,396 : 923,772.96 = 367,596.48 : x
  2. Step 2: Convert to fraction form
    669,396/923,772.96 = 367,596.48/x
  3. Step 3: Cross multiply
    669,396x = 923,772.96 × 367,596.48
  4. Step 4: Simplify right side
    669,396x = 339,575,688,415.18
  5. Step 5: Solve for x
    x = 339,575,688,415.18/669,396
  6. Step 6: Final answer
    x = 507,286.70

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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.