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Finding the Fourth Proportional to 669,420.44, 923,806.16 and 367,616.60

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Solution

The fourth proportional to 669,420.44, 923,806.16 and 367,616.60 is: 507,314.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,420.44 : 923,806.16 = 367,616.60 : x
  2. Step 2: Convert to fraction form
    669,420.44/923,806.16 = 367,616.60/x
  3. Step 3: Cross multiply
    669,420.44x = 923,806.16 × 367,616.60
  4. Step 4: Simplify right side
    669,420.44x = 339,606,479,598.26
  5. Step 5: Solve for x
    x = 339,606,479,598.26/669,420.44
  6. Step 6: Final answer
    x = 507,314.18

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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.