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Finding the Fourth Proportional to 404,616.25, 606,953.54 and 155,298.25

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Solution

The fourth proportional to 404,616.25, 606,953.54 and 155,298.25 is: 232,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,616.25 : 606,953.54 = 155,298.25 : x
  2. Step 2: Convert to fraction form
    404,616.25/606,953.54 = 155,298.25/x
  3. Step 3: Cross multiply
    404,616.25x = 606,953.54 × 155,298.25
  4. Step 4: Simplify right side
    404,616.25x = 94,258,822,593.31
  5. Step 5: Solve for x
    x = 94,258,822,593.31/404,616.25
  6. Step 6: Final answer
    x = 232,958.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.