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Finding the Fourth Proportional to 283,953.60, 391,853.40 and 156,630.24

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Solution

The fourth proportional to 283,953.60, 391,853.40 and 156,630.24 is: 216,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,953.60 : 391,853.40 = 156,630.24 : x
  2. Step 2: Convert to fraction form
    283,953.60/391,853.40 = 156,630.24/x
  3. Step 3: Cross multiply
    283,953.60x = 391,853.40 × 156,630.24
  4. Step 4: Simplify right side
    283,953.60x = 61,376,092,086.82
  5. Step 5: Solve for x
    x = 61,376,092,086.82/283,953.60
  6. Step 6: Final answer
    x = 216,148.31

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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.