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Finding the Fourth Proportional to 404,330.70, 606,496.05 and 384,647.70

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Solution

The fourth proportional to 404,330.70, 606,496.05 and 384,647.70 is: 576,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,330.70 : 606,496.05 = 384,647.70 : x
  2. Step 2: Convert to fraction form
    404,330.70/606,496.05 = 384,647.70/x
  3. Step 3: Cross multiply
    404,330.70x = 606,496.05 × 384,647.70
  4. Step 4: Simplify right side
    404,330.70x = 233,287,310,691.59
  5. Step 5: Solve for x
    x = 233,287,310,691.59/404,330.70
  6. Step 6: Final answer
    x = 576,971.55

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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.