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Finding the Fourth Proportional to 436,296.42, 653,773.95 and 258,449.58

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Solution

The fourth proportional to 436,296.42, 653,773.95 and 258,449.58 is: 387,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,296.42 : 653,773.95 = 258,449.58 : x
  2. Step 2: Convert to fraction form
    436,296.42/653,773.95 = 258,449.58/x
  3. Step 3: Cross multiply
    436,296.42x = 653,773.95 × 258,449.58
  4. Step 4: Simplify right side
    436,296.42x = 168,967,602,792.44
  5. Step 5: Solve for x
    x = 168,967,602,792.44/436,296.42
  6. Step 6: Final answer
    x = 387,277.08

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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.