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Finding the Fourth Proportional to 722,042.54, 996,445.53 and 411,995.60

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Solution

The fourth proportional to 722,042.54, 996,445.53 and 411,995.60 is: 568,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,042.54 : 996,445.53 = 411,995.60 : x
  2. Step 2: Convert to fraction form
    722,042.54/996,445.53 = 411,995.60/x
  3. Step 3: Cross multiply
    722,042.54x = 996,445.53 × 411,995.60
  4. Step 4: Simplify right side
    722,042.54x = 410,531,169,017.44
  5. Step 5: Solve for x
    x = 410,531,169,017.44/722,042.54
  6. Step 6: Final answer
    x = 568,569.23

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.