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Finding the Fourth Proportional to 475,855.48, 656,699.46 and 261,003.40

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Solution

The fourth proportional to 475,855.48, 656,699.46 and 261,003.40 is: 360,195.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,855.48 : 656,699.46 = 261,003.40 : x
  2. Step 2: Convert to fraction form
    475,855.48/656,699.46 = 261,003.40/x
  3. Step 3: Cross multiply
    475,855.48x = 656,699.46 × 261,003.40
  4. Step 4: Simplify right side
    475,855.48x = 171,400,791,838.16
  5. Step 5: Solve for x
    x = 171,400,791,838.16/475,855.48
  6. Step 6: Final answer
    x = 360,195.06

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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.