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Finding the Fourth Proportional to 571,697.22, 788,922.32 and 317,072.10

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Solution

The fourth proportional to 571,697.22, 788,922.32 and 317,072.10 is: 437,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,697.22 : 788,922.32 = 317,072.10 : x
  2. Step 2: Convert to fraction form
    571,697.22/788,922.32 = 317,072.10/x
  3. Step 3: Cross multiply
    571,697.22x = 788,922.32 × 317,072.10
  4. Step 4: Simplify right side
    571,697.22x = 250,145,256,739.27
  5. Step 5: Solve for x
    x = 250,145,256,739.27/571,697.22
  6. Step 6: Final answer
    x = 437,548.49

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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.