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Finding the Fourth Proportional to 504,542.88, 696,390.48 and 303,300

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Solution

The fourth proportional to 504,542.88, 696,390.48 and 303,300 is: 418,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,542.88 : 696,390.48 = 303,300 : x
  2. Step 2: Convert to fraction form
    504,542.88/696,390.48 = 303,300/x
  3. Step 3: Cross multiply
    504,542.88x = 696,390.48 × 303,300
  4. Step 4: Simplify right side
    504,542.88x = 211,215,232,584
  5. Step 5: Solve for x
    x = 211,215,232,584/504,542.88
  6. Step 6: Final answer
    x = 418,626.92

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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.