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Finding the Fourth Proportional to 1,964,852.65, 2,711,492.44 and 1,105,413.49

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Solution

The fourth proportional to 1,964,852.65, 2,711,492.44 and 1,105,413.49 is: 1,525,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964,852.65 : 2,711,492.44 = 1,105,413.49 : x
  2. Step 2: Convert to fraction form
    1,964,852.65/2,711,492.44 = 1,105,413.49/x
  3. Step 3: Cross multiply
    1,964,852.65x = 2,711,492.44 × 1,105,413.49
  4. Step 4: Simplify right side
    1,964,852.65x = 2,997,320,321,209.02
  5. Step 5: Solve for x
    x = 2,997,320,321,209.02/1,964,852.65
  6. Step 6: Final answer
    x = 1,525,468.24

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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.