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Finding the Fourth Proportional to 411,552.54, 620,413.48 and 384,119.36

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Solution

The fourth proportional to 411,552.54, 620,413.48 and 384,119.36 is: 579,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,552.54 : 620,413.48 = 384,119.36 : x
  2. Step 2: Convert to fraction form
    411,552.54/620,413.48 = 384,119.36/x
  3. Step 3: Cross multiply
    411,552.54x = 620,413.48 × 384,119.36
  4. Step 4: Simplify right side
    411,552.54x = 238,312,826,952.38
  5. Step 5: Solve for x
    x = 238,312,826,952.38/411,552.54
  6. Step 6: Final answer
    x = 579,058.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.