Home / 885,728.40-1,328,592.60-531,142.80

Finding the Fourth Proportional to 885,728.40, 1,328,592.60 and 531,142.80

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Solution

The fourth proportional to 885,728.40, 1,328,592.60 and 531,142.80 is: 796,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,728.40 : 1,328,592.60 = 531,142.80 : x
  2. Step 2: Convert to fraction form
    885,728.40/1,328,592.60 = 531,142.80/x
  3. Step 3: Cross multiply
    885,728.40x = 1,328,592.60 × 531,142.80
  4. Step 4: Simplify right side
    885,728.40x = 705,672,393,623.28
  5. Step 5: Solve for x
    x = 705,672,393,623.28/885,728.40
  6. Step 6: Final answer
    x = 796,714.20

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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.