Home / 547,714.20-821,571.30-454,402.20

Finding the Fourth Proportional to 547,714.20, 821,571.30 and 454,402.20

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Solution

The fourth proportional to 547,714.20, 821,571.30 and 454,402.20 is: 681,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,714.20 : 821,571.30 = 454,402.20 : x
  2. Step 2: Convert to fraction form
    547,714.20/821,571.30 = 454,402.20/x
  3. Step 3: Cross multiply
    547,714.20x = 821,571.30 × 454,402.20
  4. Step 4: Simplify right side
    547,714.20x = 373,323,806,176.86
  5. Step 5: Solve for x
    x = 373,323,806,176.86/547,714.20
  6. Step 6: Final answer
    x = 681,603.30

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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.