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Finding the Fourth Proportional to 436,643.94, 602,536.41 and 245,620.56

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Solution

The fourth proportional to 436,643.94, 602,536.41 and 245,620.56 is: 338,938.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,643.94 : 602,536.41 = 245,620.56 : x
  2. Step 2: Convert to fraction form
    436,643.94/602,536.41 = 245,620.56/x
  3. Step 3: Cross multiply
    436,643.94x = 602,536.41 × 245,620.56
  4. Step 4: Simplify right side
    436,643.94x = 147,995,330,444.59
  5. Step 5: Solve for x
    x = 147,995,330,444.59/436,643.94
  6. Step 6: Final answer
    x = 338,938.24

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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.