Home / 1,639,005.60-2,261,662.44-913,785.12

Finding the Fourth Proportional to 1,639,005.60, 2,261,662.44 and 913,785.12

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Solution

The fourth proportional to 1,639,005.60, 2,261,662.44 and 913,785.12 is: 1,260,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,005.60 : 2,261,662.44 = 913,785.12 : x
  2. Step 2: Convert to fraction form
    1,639,005.60/2,261,662.44 = 913,785.12/x
  3. Step 3: Cross multiply
    1,639,005.60x = 2,261,662.44 × 913,785.12
  4. Step 4: Simplify right side
    1,639,005.60x = 2,066,673,484,134.89
  5. Step 5: Solve for x
    x = 2,066,673,484,134.89/1,639,005.60
  6. Step 6: Final answer
    x = 1,260,931.31

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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.