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Finding the Fourth Proportional to 6,474,581.80, 9,713,039.10 and 2,688,447.40

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Solution

The fourth proportional to 6,474,581.80, 9,713,039.10 and 2,688,447.40 is: 4,033,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474,581.80 : 9,713,039.10 = 2,688,447.40 : x
  2. Step 2: Convert to fraction form
    6,474,581.80/9,713,039.10 = 2,688,447.40/x
  3. Step 3: Cross multiply
    6,474,581.80x = 9,713,039.10 × 2,688,447.40
  4. Step 4: Simplify right side
    6,474,581.80x = 26,112,994,714,493.34
  5. Step 5: Solve for x
    x = 26,112,994,714,493.34/6,474,581.80
  6. Step 6: Final answer
    x = 4,033,155.43

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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.