Home / 579,143.40-868,974.30-263,437.80

Finding the Fourth Proportional to 579,143.40, 868,974.30 and 263,437.80

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Solution

The fourth proportional to 579,143.40, 868,974.30 and 263,437.80 is: 395,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,143.40 : 868,974.30 = 263,437.80 : x
  2. Step 2: Convert to fraction form
    579,143.40/868,974.30 = 263,437.80/x
  3. Step 3: Cross multiply
    579,143.40x = 868,974.30 × 263,437.80
  4. Step 4: Simplify right side
    579,143.40x = 228,920,677,848.54
  5. Step 5: Solve for x
    x = 228,920,677,848.54/579,143.40
  6. Step 6: Final answer
    x = 395,274.60

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Double scale
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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.