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Finding the Fourth Proportional to 404,878.98, 558,729.68 and 223,603.14

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Solution

The fourth proportional to 404,878.98, 558,729.68 and 223,603.14 is: 308,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,878.98 : 558,729.68 = 223,603.14 : x
  2. Step 2: Convert to fraction form
    404,878.98/558,729.68 = 223,603.14/x
  3. Step 3: Cross multiply
    404,878.98x = 558,729.68 × 223,603.14
  4. Step 4: Simplify right side
    404,878.98x = 124,933,710,859.20
  5. Step 5: Solve for x
    x = 124,933,710,859.20/404,878.98
  6. Step 6: Final answer
    x = 308,570.50

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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.