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Finding the Fourth Proportional to 219,413.70, 307,593.90 and 219,413.70

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Solution

The fourth proportional to 219,413.70, 307,593.90 and 219,413.70 is: 307,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,413.70 : 307,593.90 = 219,413.70 : x
  2. Step 2: Convert to fraction form
    219,413.70/307,593.90 = 219,413.70/x
  3. Step 3: Cross multiply
    219,413.70x = 307,593.90 × 219,413.70
  4. Step 4: Simplify right side
    219,413.70x = 67,490,315,696.43
  5. Step 5: Solve for x
    x = 67,490,315,696.43/219,413.70
  6. Step 6: Final answer
    x = 307,593.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.