Home / 2,758,965.40-4,138,577.70-865,768.60

Finding the Fourth Proportional to 2,758,965.40, 4,138,577.70 and 865,768.60

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Solution

The fourth proportional to 2,758,965.40, 4,138,577.70 and 865,768.60 is: 1,298,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,965.40 : 4,138,577.70 = 865,768.60 : x
  2. Step 2: Convert to fraction form
    2,758,965.40/4,138,577.70 = 865,768.60/x
  3. Step 3: Cross multiply
    2,758,965.40x = 4,138,577.70 × 865,768.60
  4. Step 4: Simplify right side
    2,758,965.40x = 3,583,050,621,320.22
  5. Step 5: Solve for x
    x = 3,583,050,621,320.22/2,758,965.40
  6. Step 6: Final answer
    x = 1,298,693.57

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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.