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Finding the Fourth Proportional to 482,658.88, 666,087.12 and 291,635.32

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Solution

The fourth proportional to 482,658.88, 666,087.12 and 291,635.32 is: 402,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,658.88 : 666,087.12 = 291,635.32 : x
  2. Step 2: Convert to fraction form
    482,658.88/666,087.12 = 291,635.32/x
  3. Step 3: Cross multiply
    482,658.88x = 666,087.12 × 291,635.32
  4. Step 4: Simplify right side
    482,658.88x = 194,254,530,389.08
  5. Step 5: Solve for x
    x = 194,254,530,389.08/482,658.88
  6. Step 6: Final answer
    x = 402,467.54

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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.