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Finding the Fourth Proportional to 1,968,475.87, 2,716,496.72 and 1,063,057.87

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Solution

The fourth proportional to 1,968,475.87, 2,716,496.72 and 1,063,057.87 is: 1,467,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,475.87 : 2,716,496.72 = 1,063,057.87 : x
  2. Step 2: Convert to fraction form
    1,968,475.87/2,716,496.72 = 1,063,057.87/x
  3. Step 3: Cross multiply
    1,968,475.87x = 2,716,496.72 × 1,063,057.87
  4. Step 4: Simplify right side
    1,968,475.87x = 2,887,793,217,025.19
  5. Step 5: Solve for x
    x = 2,887,793,217,025.19/1,968,475.87
  6. Step 6: Final answer
    x = 1,467,019.87

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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.