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Finding the Fourth Proportional to 283,592.53, 391,365.93 and 156,276.33

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Solution

The fourth proportional to 283,592.53, 391,365.93 and 156,276.33 is: 215,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,592.53 : 391,365.93 = 156,276.33 : x
  2. Step 2: Convert to fraction form
    283,592.53/391,365.93 = 156,276.33/x
  3. Step 3: Cross multiply
    283,592.53x = 391,365.93 × 156,276.33
  4. Step 4: Simplify right side
    283,592.53x = 61,161,230,345.85
  5. Step 5: Solve for x
    x = 61,161,230,345.85/283,592.53
  6. Step 6: Final answer
    x = 215,665.87

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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.