Home / 1,921,424.83-2,882,286.05-642,036.74

Finding the Fourth Proportional to 1,921,424.83, 2,882,286.05 and 642,036.74

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Solution

The fourth proportional to 1,921,424.83, 2,882,286.05 and 642,036.74 is: 963,104.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,424.83 : 2,882,286.05 = 642,036.74 : x
  2. Step 2: Convert to fraction form
    1,921,424.83/2,882,286.05 = 642,036.74/x
  3. Step 3: Cross multiply
    1,921,424.83x = 2,882,286.05 × 642,036.74
  4. Step 4: Simplify right side
    1,921,424.83x = 1,850,533,521,667.86
  5. Step 5: Solve for x
    x = 1,850,533,521,667.86/1,921,424.83
  6. Step 6: Final answer
    x = 963,104.82

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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.