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Finding the Fourth Proportional to 349,643.62, 482,043.65 and 228,576.77

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Solution

The fourth proportional to 349,643.62, 482,043.65 and 228,576.77 is: 315,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,643.62 : 482,043.65 = 228,576.77 : x
  2. Step 2: Convert to fraction form
    349,643.62/482,043.65 = 228,576.77/x
  3. Step 3: Cross multiply
    349,643.62x = 482,043.65 × 228,576.77
  4. Step 4: Simplify right side
    349,643.62x = 110,183,980,516.01
  5. Step 5: Solve for x
    x = 110,183,980,516.01/349,643.62
  6. Step 6: Final answer
    x = 315,132.25

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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.