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Finding the Fourth Proportional to 571,624.22, 788,906.46 and 329,971.64

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Solution

The fourth proportional to 571,624.22, 788,906.46 and 329,971.64 is: 455,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,624.22 : 788,906.46 = 329,971.64 : x
  2. Step 2: Convert to fraction form
    571,624.22/788,906.46 = 329,971.64/x
  3. Step 3: Cross multiply
    571,624.22x = 788,906.46 × 329,971.64
  4. Step 4: Simplify right side
    571,624.22x = 260,316,758,412.79
  5. Step 5: Solve for x
    x = 260,316,758,412.79/571,624.22
  6. Step 6: Final answer
    x = 455,398.41

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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.