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Finding the Fourth Proportional to 406,573.64, 561,079.73 and 236,818.70

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Solution

The fourth proportional to 406,573.64, 561,079.73 and 236,818.70 is: 326,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,573.64 : 561,079.73 = 236,818.70 : x
  2. Step 2: Convert to fraction form
    406,573.64/561,079.73 = 236,818.70/x
  3. Step 3: Cross multiply
    406,573.64x = 561,079.73 × 236,818.70
  4. Step 4: Simplify right side
    406,573.64x = 132,874,168,265.46
  5. Step 5: Solve for x
    x = 132,874,168,265.46/406,573.64
  6. Step 6: Final answer
    x = 326,814.52

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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.