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Finding the Fourth Proportional to 1,205,712, 1,663,960.32 and 669,168

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Solution

The fourth proportional to 1,205,712, 1,663,960.32 and 669,168 is: 923,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,712 : 1,663,960.32 = 669,168 : x
  2. Step 2: Convert to fraction form
    1,205,712/1,663,960.32 = 669,168/x
  3. Step 3: Cross multiply
    1,205,712x = 1,663,960.32 × 669,168
  4. Step 4: Simplify right side
    1,205,712x = 1,113,468,999,413.76
  5. Step 5: Solve for x
    x = 1,113,468,999,413.76/1,205,712
  6. Step 6: Final answer
    x = 923,495.00

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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.