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Finding the Fourth Proportional to 1,993,466.04, 2,754,581.63 and 1,419,509.76

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Solution

The fourth proportional to 1,993,466.04, 2,754,581.63 and 1,419,509.76 is: 1,961,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,466.04 : 2,754,581.63 = 1,419,509.76 : x
  2. Step 2: Convert to fraction form
    1,993,466.04/2,754,581.63 = 1,419,509.76/x
  3. Step 3: Cross multiply
    1,993,466.04x = 2,754,581.63 × 1,419,509.76
  4. Step 4: Simplify right side
    1,993,466.04x = 3,910,155,501,404.16
  5. Step 5: Solve for x
    x = 3,910,155,501,404.16/1,993,466.04
  6. Step 6: Final answer
    x = 1,961,485.89

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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.