Home / 1,298,980.11-1,947,971.71-445,892.70

Finding the Fourth Proportional to 1,298,980.11, 1,947,971.71 and 445,892.70

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Solution

The fourth proportional to 1,298,980.11, 1,947,971.71 and 445,892.70 is: 668,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,980.11 : 1,947,971.71 = 445,892.70 : x
  2. Step 2: Convert to fraction form
    1,298,980.11/1,947,971.71 = 445,892.70/x
  3. Step 3: Cross multiply
    1,298,980.11x = 1,947,971.71 × 445,892.70
  4. Step 4: Simplify right side
    1,298,980.11x = 868,586,365,295.52
  5. Step 5: Solve for x
    x = 868,586,365,295.52/1,298,980.11
  6. Step 6: Final answer
    x = 668,667.95

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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.