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Finding the Fourth Proportional to 475,858.59, 656,685.80 and 261,000.42

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Solution

The fourth proportional to 475,858.59, 656,685.80 and 261,000.42 is: 360,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,858.59 : 656,685.80 = 261,000.42 : x
  2. Step 2: Convert to fraction form
    475,858.59/656,685.80 = 261,000.42/x
  3. Step 3: Cross multiply
    475,858.59x = 656,685.80 × 261,000.42
  4. Step 4: Simplify right side
    475,858.59x = 171,395,269,608.04
  5. Step 5: Solve for x
    x = 171,395,269,608.04/475,858.59
  6. Step 6: Final answer
    x = 360,181.10

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1.5x scale

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.