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Finding the Fourth Proportional to 1,974,332.74, 2,961,679.83 and 554,379.25

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Solution

The fourth proportional to 1,974,332.74, 2,961,679.83 and 554,379.25 is: 831,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,332.74 : 2,961,679.83 = 554,379.25 : x
  2. Step 2: Convert to fraction form
    1,974,332.74/2,961,679.83 = 554,379.25/x
  3. Step 3: Cross multiply
    1,974,332.74x = 2,961,679.83 × 554,379.25
  4. Step 4: Simplify right side
    1,974,332.74x = 1,641,893,842,895.53
  5. Step 5: Solve for x
    x = 1,641,893,842,895.53/1,974,332.74
  6. Step 6: Final answer
    x = 831,619.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.