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Finding the Fourth Proportional to 475,689.54, 712,134.63 and 317,525.70

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Solution

The fourth proportional to 475,689.54, 712,134.63 and 317,525.70 is: 475,354.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,689.54 : 712,134.63 = 317,525.70 : x
  2. Step 2: Convert to fraction form
    475,689.54/712,134.63 = 317,525.70/x
  3. Step 3: Cross multiply
    475,689.54x = 712,134.63 × 317,525.70
  4. Step 4: Simplify right side
    475,689.54x = 226,121,046,884.99
  5. Step 5: Solve for x
    x = 226,121,046,884.99/475,689.54
  6. Step 6: Final answer
    x = 475,354.25

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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.