Home / 2,578,713.60-3,868,069.68-805,785.60

Finding the Fourth Proportional to 2,578,713.60, 3,868,069.68 and 805,785.60

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Solution

The fourth proportional to 2,578,713.60, 3,868,069.68 and 805,785.60 is: 1,208,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,713.60 : 3,868,069.68 = 805,785.60 : x
  2. Step 2: Convert to fraction form
    2,578,713.60/3,868,069.68 = 805,785.60/x
  3. Step 3: Cross multiply
    2,578,713.60x = 3,868,069.68 × 805,785.60
  4. Step 4: Simplify right side
    2,578,713.60x = 3,116,834,847,940.61
  5. Step 5: Solve for x
    x = 3,116,834,847,940.61/2,578,713.60
  6. Step 6: Final answer
    x = 1,208,678.18

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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.