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Finding the Fourth Proportional to 352,062.80, 528,094.20 and 313,355.60

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Solution

The fourth proportional to 352,062.80, 528,094.20 and 313,355.60 is: 470,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,062.80 : 528,094.20 = 313,355.60 : x
  2. Step 2: Convert to fraction form
    352,062.80/528,094.20 = 313,355.60/x
  3. Step 3: Cross multiply
    352,062.80x = 528,094.20 × 313,355.60
  4. Step 4: Simplify right side
    352,062.80x = 165,481,274,897.52
  5. Step 5: Solve for x
    x = 165,481,274,897.52/352,062.80
  6. Step 6: Final answer
    x = 470,033.40

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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.