Home / 579,939.40-869,898.12-238,310.20

Finding the Fourth Proportional to 579,939.40, 869,898.12 and 238,310.20

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Solution

The fourth proportional to 579,939.40, 869,898.12 and 238,310.20 is: 357,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,939.40 : 869,898.12 = 238,310.20 : x
  2. Step 2: Convert to fraction form
    579,939.40/869,898.12 = 238,310.20/x
  3. Step 3: Cross multiply
    579,939.40x = 869,898.12 × 238,310.20
  4. Step 4: Simplify right side
    579,939.40x = 207,305,594,956.82
  5. Step 5: Solve for x
    x = 207,305,594,956.82/579,939.40
  6. Step 6: Final answer
    x = 357,460.79

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1.5x scale

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.