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Finding the Fourth Proportional to 531,544.48, 797,608.32 and 215,916.64

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Solution

The fourth proportional to 531,544.48, 797,608.32 and 215,916.64 is: 323,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,544.48 : 797,608.32 = 215,916.64 : x
  2. Step 2: Convert to fraction form
    531,544.48/797,608.32 = 215,916.64/x
  3. Step 3: Cross multiply
    531,544.48x = 797,608.32 × 215,916.64
  4. Step 4: Simplify right side
    531,544.48x = 172,216,908,490.45
  5. Step 5: Solve for x
    x = 172,216,908,490.45/531,544.48
  6. Step 6: Final answer
    x = 323,993.41

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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.