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Finding the Fourth Proportional to 404,309.84, 557,937.96 and 223,017.92

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Solution

The fourth proportional to 404,309.84, 557,937.96 and 223,017.92 is: 307,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,309.84 : 557,937.96 = 223,017.92 : x
  2. Step 2: Convert to fraction form
    404,309.84/557,937.96 = 223,017.92/x
  3. Step 3: Cross multiply
    404,309.84x = 557,937.96 × 223,017.92
  4. Step 4: Simplify right side
    404,309.84x = 124,430,163,328.24
  5. Step 5: Solve for x
    x = 124,430,163,328.24/404,309.84
  6. Step 6: Final answer
    x = 307,759.42

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1.5x scale

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.