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Finding the Fourth Proportional to 669,352.04, 923,072.72 and 439,503.90

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Solution

The fourth proportional to 669,352.04, 923,072.72 and 439,503.90 is: 606,099.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,352.04 : 923,072.72 = 439,503.90 : x
  2. Step 2: Convert to fraction form
    669,352.04/923,072.72 = 439,503.90/x
  3. Step 3: Cross multiply
    669,352.04x = 923,072.72 × 439,503.90
  4. Step 4: Simplify right side
    669,352.04x = 405,694,060,423.61
  5. Step 5: Solve for x
    x = 405,694,060,423.61/669,352.04
  6. Step 6: Final answer
    x = 606,099.68

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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.