Home / 810,060.70-1,215,091.05-573,670.30

Finding the Fourth Proportional to 810,060.70, 1,215,091.05 and 573,670.30

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Solution

The fourth proportional to 810,060.70, 1,215,091.05 and 573,670.30 is: 860,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,060.70 : 1,215,091.05 = 573,670.30 : x
  2. Step 2: Convert to fraction form
    810,060.70/1,215,091.05 = 573,670.30/x
  3. Step 3: Cross multiply
    810,060.70x = 1,215,091.05 × 573,670.30
  4. Step 4: Simplify right side
    810,060.70x = 697,061,647,180.82
  5. Step 5: Solve for x
    x = 697,061,647,180.82/810,060.70
  6. Step 6: Final answer
    x = 860,505.45

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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.