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Finding the Fourth Proportional to 352,558.20, 486,530.64 and 191,413.20

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Solution

The fourth proportional to 352,558.20, 486,530.64 and 191,413.20 is: 264,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,558.20 : 486,530.64 = 191,413.20 : x
  2. Step 2: Convert to fraction form
    352,558.20/486,530.64 = 191,413.20/x
  3. Step 3: Cross multiply
    352,558.20x = 486,530.64 × 191,413.20
  4. Step 4: Simplify right side
    352,558.20x = 93,128,386,700.45
  5. Step 5: Solve for x
    x = 93,128,386,700.45/352,558.20
  6. Step 6: Final answer
    x = 264,150.39

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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.