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Finding the Fourth Proportional to 603,159.20, 903,426.60 and 485,061.20

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Solution

The fourth proportional to 603,159.20, 903,426.60 and 485,061.20 is: 726,536.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,159.20 : 903,426.60 = 485,061.20 : x
  2. Step 2: Convert to fraction form
    603,159.20/903,426.60 = 485,061.20/x
  3. Step 3: Cross multiply
    603,159.20x = 903,426.60 × 485,061.20
  4. Step 4: Simplify right side
    603,159.20x = 438,217,190,707.92
  5. Step 5: Solve for x
    x = 438,217,190,707.92/603,159.20
  6. Step 6: Final answer
    x = 726,536.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.