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Finding the Fourth Proportional to 434,354.57, 599,408.90 and 243,369.33

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Solution

The fourth proportional to 434,354.57, 599,408.90 and 243,369.33 is: 335,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,354.57 : 599,408.90 = 243,369.33 : x
  2. Step 2: Convert to fraction form
    434,354.57/599,408.90 = 243,369.33/x
  3. Step 3: Cross multiply
    434,354.57x = 599,408.90 × 243,369.33
  4. Step 4: Simplify right side
    434,354.57x = 145,877,741,172.19
  5. Step 5: Solve for x
    x = 145,877,741,172.19/434,354.57
  6. Step 6: Final answer
    x = 335,849.45

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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.