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Finding the Fourth Proportional to 579,001.25, 868,566 and 199,878.99

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Solution

The fourth proportional to 579,001.25, 868,566 and 199,878.99 is: 299,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,001.25 : 868,566 = 199,878.99 : x
  2. Step 2: Convert to fraction form
    579,001.25/868,566 = 199,878.99/x
  3. Step 3: Cross multiply
    579,001.25x = 868,566 × 199,878.99
  4. Step 4: Simplify right side
    579,001.25x = 173,608,094,828.34
  5. Step 5: Solve for x
    x = 173,608,094,828.34/579,001.25
  6. Step 6: Final answer
    x = 299,840.62

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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.