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Finding the Fourth Proportional to 356,345.62, 534,616.85 and 317,176.45

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Solution

The fourth proportional to 356,345.62, 534,616.85 and 317,176.45 is: 475,852.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,345.62 : 534,616.85 = 317,176.45 : x
  2. Step 2: Convert to fraction form
    356,345.62/534,616.85 = 317,176.45/x
  3. Step 3: Cross multiply
    356,345.62x = 534,616.85 × 317,176.45
  4. Step 4: Simplify right side
    356,345.62x = 169,567,873,007.30
  5. Step 5: Solve for x
    x = 169,567,873,007.30/356,345.62
  6. Step 6: Final answer
    x = 475,852.27

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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.