Home / 644,554.20-966,831.30-579,235.80

Finding the Fourth Proportional to 644,554.20, 966,831.30 and 579,235.80

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Solution

The fourth proportional to 644,554.20, 966,831.30 and 579,235.80 is: 868,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,554.20 : 966,831.30 = 579,235.80 : x
  2. Step 2: Convert to fraction form
    644,554.20/966,831.30 = 579,235.80/x
  3. Step 3: Cross multiply
    644,554.20x = 966,831.30 × 579,235.80
  4. Step 4: Simplify right side
    644,554.20x = 560,023,301,520.54
  5. Step 5: Solve for x
    x = 560,023,301,520.54/644,554.20
  6. Step 6: Final answer
    x = 868,853.70

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Double scale
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Similar ratio
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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.