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Finding the Fourth Proportional to 571,290.22, 788,353.32 and 329,650.48

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Solution

The fourth proportional to 571,290.22, 788,353.32 and 329,650.48 is: 454,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,290.22 : 788,353.32 = 329,650.48 : x
  2. Step 2: Convert to fraction form
    571,290.22/788,353.32 = 329,650.48/x
  3. Step 3: Cross multiply
    571,290.22x = 788,353.32 × 329,650.48
  4. Step 4: Simplify right side
    571,290.22x = 259,881,050,347.59
  5. Step 5: Solve for x
    x = 259,881,050,347.59/571,290.22
  6. Step 6: Final answer
    x = 454,901.98

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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.