Home / 1,285,729.60-1,928,836.32-517,285.12

Finding the Fourth Proportional to 1,285,729.60, 1,928,836.32 and 517,285.12

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Solution

The fourth proportional to 1,285,729.60, 1,928,836.32 and 517,285.12 is: 776,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,729.60 : 1,928,836.32 = 517,285.12 : x
  2. Step 2: Convert to fraction form
    1,285,729.60/1,928,836.32 = 517,285.12/x
  3. Step 3: Cross multiply
    1,285,729.60x = 1,928,836.32 × 517,285.12
  4. Step 4: Simplify right side
    1,285,729.60x = 997,758,327,251.56
  5. Step 5: Solve for x
    x = 997,758,327,251.56/1,285,729.60
  6. Step 6: Final answer
    x = 776,025.01

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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.