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Finding the Fourth Proportional to 577,803.82, 866,536.24 and 217,714.90

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Solution

The fourth proportional to 577,803.82, 866,536.24 and 217,714.90 is: 326,508.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,803.82 : 866,536.24 = 217,714.90 : x
  2. Step 2: Convert to fraction form
    577,803.82/866,536.24 = 217,714.90/x
  3. Step 3: Cross multiply
    577,803.82x = 866,536.24 × 217,714.90
  4. Step 4: Simplify right side
    577,803.82x = 188,657,850,837.98
  5. Step 5: Solve for x
    x = 188,657,850,837.98/577,803.82
  6. Step 6: Final answer
    x = 326,508.49

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Double scale
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Similar ratio
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1.5x scale

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.