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Finding the Fourth Proportional to 1,175,059, 1,621,647.03 and 665,925.40

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Solution

The fourth proportional to 1,175,059, 1,621,647.03 and 665,925.40 is: 919,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,059 : 1,621,647.03 = 665,925.40 : x
  2. Step 2: Convert to fraction form
    1,175,059/1,621,647.03 = 665,925.40/x
  3. Step 3: Cross multiply
    1,175,059x = 1,621,647.03 × 665,925.40
  4. Step 4: Simplify right side
    1,175,059x = 1,079,895,947,111.56
  5. Step 5: Solve for x
    x = 1,079,895,947,111.56/1,175,059
  6. Step 6: Final answer
    x = 919,014.23

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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.