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Finding the Fourth Proportional to 571,674.30, 788,910.30 and 317,025.51

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Solution

The fourth proportional to 571,674.30, 788,910.30 and 317,025.51 is: 437,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,674.30 : 788,910.30 = 317,025.51 : x
  2. Step 2: Convert to fraction form
    571,674.30/788,910.30 = 317,025.51/x
  3. Step 3: Cross multiply
    571,674.30x = 788,910.30 × 317,025.51
  4. Step 4: Simplify right side
    571,674.30x = 250,104,690,201.75
  5. Step 5: Solve for x
    x = 250,104,690,201.75/571,674.30
  6. Step 6: Final answer
    x = 437,495.07

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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.