Home / 547,748.80-821,623.20-336,702.40

Finding the Fourth Proportional to 547,748.80, 821,623.20 and 336,702.40

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Solution

The fourth proportional to 547,748.80, 821,623.20 and 336,702.40 is: 505,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,748.80 : 821,623.20 = 336,702.40 : x
  2. Step 2: Convert to fraction form
    547,748.80/821,623.20 = 336,702.40/x
  3. Step 3: Cross multiply
    547,748.80x = 821,623.20 × 336,702.40
  4. Step 4: Simplify right side
    547,748.80x = 276,642,503,335.68
  5. Step 5: Solve for x
    x = 276,642,503,335.68/547,748.80
  6. Step 6: Final answer
    x = 505,053.60

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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.