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Finding the Fourth Proportional to 536,638.36, 740,561.49 and 294,915.74

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Solution

The fourth proportional to 536,638.36, 740,561.49 and 294,915.74 is: 406,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,638.36 : 740,561.49 = 294,915.74 : x
  2. Step 2: Convert to fraction form
    536,638.36/740,561.49 = 294,915.74/x
  3. Step 3: Cross multiply
    536,638.36x = 740,561.49 × 294,915.74
  4. Step 4: Simplify right side
    536,638.36x = 218,403,239,838.85
  5. Step 5: Solve for x
    x = 218,403,239,838.85/536,638.36
  6. Step 6: Final answer
    x = 406,984.03

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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.