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Finding the Fourth Proportional to 1,928,873.70, 2,893,468.32 and 968,835.66

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Solution

The fourth proportional to 1,928,873.70, 2,893,468.32 and 968,835.66 is: 1,453,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,873.70 : 2,893,468.32 = 968,835.66 : x
  2. Step 2: Convert to fraction form
    1,928,873.70/2,893,468.32 = 968,835.66/x
  3. Step 3: Cross multiply
    1,928,873.70x = 2,893,468.32 × 968,835.66
  4. Step 4: Simplify right side
    1,928,873.70x = 2,803,295,289,496.29
  5. Step 5: Solve for x
    x = 2,803,295,289,496.29/1,928,873.70
  6. Step 6: Final answer
    x = 1,453,332.73

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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.