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Finding the Fourth Proportional to 482,218.48, 723,448.02 and 340,340.91

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Solution

The fourth proportional to 482,218.48, 723,448.02 and 340,340.91 is: 510,596.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,218.48 : 723,448.02 = 340,340.91 : x
  2. Step 2: Convert to fraction form
    482,218.48/723,448.02 = 340,340.91/x
  3. Step 3: Cross multiply
    482,218.48x = 723,448.02 × 340,340.91
  4. Step 4: Simplify right side
    482,218.48x = 246,218,956,027.85
  5. Step 5: Solve for x
    x = 246,218,956,027.85/482,218.48
  6. Step 6: Final answer
    x = 510,596.27

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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.