Home / 2,788,409.60-4,181,776.80-991,056.80

Finding the Fourth Proportional to 2,788,409.60, 4,181,776.80 and 991,056.80

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Solution

The fourth proportional to 2,788,409.60, 4,181,776.80 and 991,056.80 is: 1,486,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,409.60 : 4,181,776.80 = 991,056.80 : x
  2. Step 2: Convert to fraction form
    2,788,409.60/4,181,776.80 = 991,056.80/x
  3. Step 3: Cross multiply
    2,788,409.60x = 4,181,776.80 × 991,056.80
  4. Step 4: Simplify right side
    2,788,409.60x = 4,144,378,333,722.24
  5. Step 5: Solve for x
    x = 4,144,378,333,722.24/2,788,409.60
  6. Step 6: Final answer
    x = 1,486,287.50

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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.