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Finding the Fourth Proportional to 540,396.43, 745,749.99 and 295,381.52

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Solution

The fourth proportional to 540,396.43, 745,749.99 and 295,381.52 is: 407,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,396.43 : 745,749.99 = 295,381.52 : x
  2. Step 2: Convert to fraction form
    540,396.43/745,749.99 = 295,381.52/x
  3. Step 3: Cross multiply
    540,396.43x = 745,749.99 × 295,381.52
  4. Step 4: Simplify right side
    540,396.43x = 220,280,767,450.56
  5. Step 5: Solve for x
    x = 220,280,767,450.56/540,396.43
  6. Step 6: Final answer
    x = 407,628.10

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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.