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Finding the Fourth Proportional to 363,915.61, 502,205.53 and 211,044.44

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Solution

The fourth proportional to 363,915.61, 502,205.53 and 211,044.44 is: 291,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,915.61 : 502,205.53 = 211,044.44 : x
  2. Step 2: Convert to fraction form
    363,915.61/502,205.53 = 211,044.44/x
  3. Step 3: Cross multiply
    363,915.61x = 502,205.53 × 211,044.44
  4. Step 4: Simplify right side
    363,915.61x = 105,987,683,736.02
  5. Step 5: Solve for x
    x = 105,987,683,736.02/363,915.61
  6. Step 6: Final answer
    x = 291,242.48

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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.