Home / 1,177,786.40-1,766,679.60-778,877.60

Finding the Fourth Proportional to 1,177,786.40, 1,766,679.60 and 778,877.60

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Solution

The fourth proportional to 1,177,786.40, 1,766,679.60 and 778,877.60 is: 1,168,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,786.40 : 1,766,679.60 = 778,877.60 : x
  2. Step 2: Convert to fraction form
    1,177,786.40/1,766,679.60 = 778,877.60/x
  3. Step 3: Cross multiply
    1,177,786.40x = 1,766,679.60 × 778,877.60
  4. Step 4: Simplify right side
    1,177,786.40x = 1,376,027,166,816.96
  5. Step 5: Solve for x
    x = 1,376,027,166,816.96/1,177,786.40
  6. Step 6: Final answer
    x = 1,168,316.40

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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.