Home / 1,778,065.40-2,667,443.70-515,934.20

Finding the Fourth Proportional to 1,778,065.40, 2,667,443.70 and 515,934.20

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Solution

The fourth proportional to 1,778,065.40, 2,667,443.70 and 515,934.20 is: 774,001.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,065.40 : 2,667,443.70 = 515,934.20 : x
  2. Step 2: Convert to fraction form
    1,778,065.40/2,667,443.70 = 515,934.20/x
  3. Step 3: Cross multiply
    1,778,065.40x = 2,667,443.70 × 515,934.20
  4. Step 4: Simplify right side
    1,778,065.40x = 1,376,225,431,404.54
  5. Step 5: Solve for x
    x = 1,376,225,431,404.54/1,778,065.40
  6. Step 6: Final answer
    x = 774,001.58

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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.