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Finding the Fourth Proportional to 572,573.88, 858,861 and 217,504.08

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Solution

The fourth proportional to 572,573.88, 858,861 and 217,504.08 is: 326,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,573.88 : 858,861 = 217,504.08 : x
  2. Step 2: Convert to fraction form
    572,573.88/858,861 = 217,504.08/x
  3. Step 3: Cross multiply
    572,573.88x = 858,861 × 217,504.08
  4. Step 4: Simplify right side
    572,573.88x = 186,805,771,652.88
  5. Step 5: Solve for x
    x = 186,805,771,652.88/572,573.88
  6. Step 6: Final answer
    x = 326,256.19

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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.