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Finding the Fourth Proportional to 619,627.30, 854,769.42 and 404,893.06

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Solution

The fourth proportional to 619,627.30, 854,769.42 and 404,893.06 is: 558,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,627.30 : 854,769.42 = 404,893.06 : x
  2. Step 2: Convert to fraction form
    619,627.30/854,769.42 = 404,893.06/x
  3. Step 3: Cross multiply
    619,627.30x = 854,769.42 × 404,893.06
  4. Step 4: Simplify right side
    619,627.30x = 346,090,206,058.23
  5. Step 5: Solve for x
    x = 346,090,206,058.23/619,627.30
  6. Step 6: Final answer
    x = 558,545.77

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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.