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Finding the Fourth Proportional to 1,936,838.02, 2,672,856.84 and 1,065,684.08

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Solution

The fourth proportional to 1,936,838.02, 2,672,856.84 and 1,065,684.08 is: 1,470,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936,838.02 : 2,672,856.84 = 1,065,684.08 : x
  2. Step 2: Convert to fraction form
    1,936,838.02/2,672,856.84 = 1,065,684.08/x
  3. Step 3: Cross multiply
    1,936,838.02x = 2,672,856.84 × 1,065,684.08
  4. Step 4: Simplify right side
    1,936,838.02x = 2,848,420,982,507.11
  5. Step 5: Solve for x
    x = 2,848,420,982,507.11/1,936,838.02
  6. Step 6: Final answer
    x = 1,470,655.24

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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.