Home / 1,177,009.10-1,765,513.65-911,288.60

Finding the Fourth Proportional to 1,177,009.10, 1,765,513.65 and 911,288.60

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Solution

The fourth proportional to 1,177,009.10, 1,765,513.65 and 911,288.60 is: 1,366,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,009.10 : 1,765,513.65 = 911,288.60 : x
  2. Step 2: Convert to fraction form
    1,177,009.10/1,765,513.65 = 911,288.60/x
  3. Step 3: Cross multiply
    1,177,009.10x = 1,765,513.65 × 911,288.60
  4. Step 4: Simplify right side
    1,177,009.10x = 1,608,892,462,389.39
  5. Step 5: Solve for x
    x = 1,608,892,462,389.39/1,177,009.10
  6. Step 6: Final answer
    x = 1,366,932.90

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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.