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Finding the Fourth Proportional to 531,762.78, 797,794.89 and 216,445.98

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Solution

The fourth proportional to 531,762.78, 797,794.89 and 216,445.98 is: 324,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,762.78 : 797,794.89 = 216,445.98 : x
  2. Step 2: Convert to fraction form
    531,762.78/797,794.89 = 216,445.98/x
  3. Step 3: Cross multiply
    531,762.78x = 797,794.89 × 216,445.98
  4. Step 4: Simplify right side
    531,762.78x = 172,679,496,805.04
  5. Step 5: Solve for x
    x = 172,679,496,805.04/531,762.78
  6. Step 6: Final answer
    x = 324,730.32

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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.