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Finding the Fourth Proportional to 1,168,111, 1,611,993.18 and 631,567

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Solution

The fourth proportional to 1,168,111, 1,611,993.18 and 631,567 is: 871,562.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,111 : 1,611,993.18 = 631,567 : x
  2. Step 2: Convert to fraction form
    1,168,111/1,611,993.18 = 631,567/x
  3. Step 3: Cross multiply
    1,168,111x = 1,611,993.18 × 631,567
  4. Step 4: Simplify right side
    1,168,111x = 1,018,081,696,713.06
  5. Step 5: Solve for x
    x = 1,018,081,696,713.06/1,168,111
  6. Step 6: Final answer
    x = 871,562.46

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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.