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Finding the Fourth Proportional to 393,413.70, 590,120.55 and 363,233.10

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Solution

The fourth proportional to 393,413.70, 590,120.55 and 363,233.10 is: 544,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,413.70 : 590,120.55 = 363,233.10 : x
  2. Step 2: Convert to fraction form
    393,413.70/590,120.55 = 363,233.10/x
  3. Step 3: Cross multiply
    393,413.70x = 590,120.55 × 363,233.10
  4. Step 4: Simplify right side
    393,413.70x = 214,351,316,750.21
  5. Step 5: Solve for x
    x = 214,351,316,750.21/393,413.70
  6. Step 6: Final answer
    x = 544,849.65

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Similar ratio
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1.5x scale

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.