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Finding the Fourth Proportional to 536,762.88, 740,423.91 and 321,778.04

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Solution

The fourth proportional to 536,762.88, 740,423.91 and 321,778.04 is: 443,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,762.88 : 740,423.91 = 321,778.04 : x
  2. Step 2: Convert to fraction form
    536,762.88/740,423.91 = 321,778.04/x
  3. Step 3: Cross multiply
    536,762.88x = 740,423.91 × 321,778.04
  4. Step 4: Simplify right side
    536,762.88x = 238,252,154,528.94
  5. Step 5: Solve for x
    x = 238,252,154,528.94/536,762.88
  6. Step 6: Final answer
    x = 443,868.54

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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.