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Finding the Fourth Proportional to 1,291,403.00, 1,784,594.05 and 968,552.59

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Solution

The fourth proportional to 1,291,403.00, 1,784,594.05 and 968,552.59 is: 1,338,446.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,403.00 : 1,784,594.05 = 968,552.59 : x
  2. Step 2: Convert to fraction form
    1,291,403.00/1,784,594.05 = 968,552.59/x
  3. Step 3: Cross multiply
    1,291,403.00x = 1,784,594.05 × 968,552.59
  4. Step 4: Simplify right side
    1,291,403.00x = 1,728,473,188,413.39
  5. Step 5: Solve for x
    x = 1,728,473,188,413.39/1,291,403.00
  6. Step 6: Final answer
    x = 1,338,446.01

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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.