Home / 1,778,546.40-2,668,165.20-516,415.20

Finding the Fourth Proportional to 1,778,546.40, 2,668,165.20 and 516,415.20

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Solution

The fourth proportional to 1,778,546.40, 2,668,165.20 and 516,415.20 is: 774,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,546.40 : 2,668,165.20 = 516,415.20 : x
  2. Step 2: Convert to fraction form
    1,778,546.40/2,668,165.20 = 516,415.20/x
  3. Step 3: Cross multiply
    1,778,546.40x = 2,668,165.20 × 516,415.20
  4. Step 4: Simplify right side
    1,778,546.40x = 1,377,881,065,391.04
  5. Step 5: Solve for x
    x = 1,377,881,065,391.04/1,778,546.40
  6. Step 6: Final answer
    x = 774,723.15

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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.