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Finding the Fourth Proportional to 669,326.67, 923,670.72 and 367,520.67

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Solution

The fourth proportional to 669,326.67, 923,670.72 and 367,520.67 is: 507,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,326.67 : 923,670.72 = 367,520.67 : x
  2. Step 2: Convert to fraction form
    669,326.67/923,670.72 = 367,520.67/x
  3. Step 3: Cross multiply
    669,326.67x = 923,670.72 × 367,520.67
  4. Step 4: Simplify right side
    669,326.67x = 339,468,081,873.78
  5. Step 5: Solve for x
    x = 339,468,081,873.78/669,326.67
  6. Step 6: Final answer
    x = 507,178.48

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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.