Home / 1,279,691.60-1,920,199.80-522,088.40

Finding the Fourth Proportional to 1,279,691.60, 1,920,199.80 and 522,088.40

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Solution

The fourth proportional to 1,279,691.60, 1,920,199.80 and 522,088.40 is: 783,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,691.60 : 1,920,199.80 = 522,088.40 : x
  2. Step 2: Convert to fraction form
    1,279,691.60/1,920,199.80 = 522,088.40/x
  3. Step 3: Cross multiply
    1,279,691.60x = 1,920,199.80 × 522,088.40
  4. Step 4: Simplify right side
    1,279,691.60x = 1,002,514,041,262.32
  5. Step 5: Solve for x
    x = 1,002,514,041,262.32/1,279,691.60
  6. Step 6: Final answer
    x = 783,402.85

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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.