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Finding the Fourth Proportional to 436,571.68, 602,462.64 and 242,978.08

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Solution

The fourth proportional to 436,571.68, 602,462.64 and 242,978.08 is: 335,306.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,571.68 : 602,462.64 = 242,978.08 : x
  2. Step 2: Convert to fraction form
    436,571.68/602,462.64 = 242,978.08/x
  3. Step 3: Cross multiply
    436,571.68x = 602,462.64 × 242,978.08
  4. Step 4: Simplify right side
    436,571.68x = 146,385,215,538.93
  5. Step 5: Solve for x
    x = 146,385,215,538.93/436,571.68
  6. Step 6: Final answer
    x = 335,306.26

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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.