Home / 1,279,668.60-1,920,165.30-522,065.40

Finding the Fourth Proportional to 1,279,668.60, 1,920,165.30 and 522,065.40

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Solution

The fourth proportional to 1,279,668.60, 1,920,165.30 and 522,065.40 is: 783,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,668.60 : 1,920,165.30 = 522,065.40 : x
  2. Step 2: Convert to fraction form
    1,279,668.60/1,920,165.30 = 522,065.40/x
  3. Step 3: Cross multiply
    1,279,668.60x = 1,920,165.30 × 522,065.40
  4. Step 4: Simplify right side
    1,279,668.60x = 1,002,451,865,410.62
  5. Step 5: Solve for x
    x = 1,002,451,865,410.62/1,279,668.60
  6. Step 6: Final answer
    x = 783,368.34

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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.