Home / 352,052.30-528,078.45-313,345.10

Finding the Fourth Proportional to 352,052.30, 528,078.45 and 313,345.10

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Solution

The fourth proportional to 352,052.30, 528,078.45 and 313,345.10 is: 470,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,052.30 : 528,078.45 = 313,345.10 : x
  2. Step 2: Convert to fraction form
    352,052.30/528,078.45 = 313,345.10/x
  3. Step 3: Cross multiply
    352,052.30x = 528,078.45 × 313,345.10
  4. Step 4: Simplify right side
    352,052.30x = 165,470,794,723.10
  5. Step 5: Solve for x
    x = 165,470,794,723.10/352,052.30
  6. Step 6: Final answer
    x = 470,017.65

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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.