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Finding the Fourth Proportional to 531,574.48, 797,653.32 and 215,946.64

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Solution

The fourth proportional to 531,574.48, 797,653.32 and 215,946.64 is: 324,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,574.48 : 797,653.32 = 215,946.64 : x
  2. Step 2: Convert to fraction form
    531,574.48/797,653.32 = 215,946.64/x
  3. Step 3: Cross multiply
    531,574.48x = 797,653.32 × 215,946.64
  4. Step 4: Simplify right side
    531,574.48x = 172,250,554,338.85
  5. Step 5: Solve for x
    x = 172,250,554,338.85/531,574.48
  6. Step 6: Final answer
    x = 324,038.42

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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.