Home / 1,778,661.33-2,668,065.78-516,488.96

Finding the Fourth Proportional to 1,778,661.33, 2,668,065.78 and 516,488.96

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Solution

The fourth proportional to 1,778,661.33, 2,668,065.78 and 516,488.96 is: 774,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,661.33 : 2,668,065.78 = 516,488.96 : x
  2. Step 2: Convert to fraction form
    1,778,661.33/2,668,065.78 = 516,488.96/x
  3. Step 3: Cross multiply
    1,778,661.33x = 2,668,065.78 × 516,488.96
  4. Step 4: Simplify right side
    1,778,661.33x = 1,378,026,506,583.46
  5. Step 5: Solve for x
    x = 1,378,026,506,583.46/1,778,661.33
  6. Step 6: Final answer
    x = 774,754.86

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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.