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Finding the Fourth Proportional to 571,791.64, 788,425.86 and 364,783.72

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Solution

The fourth proportional to 571,791.64, 788,425.86 and 364,783.72 is: 502,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,791.64 : 788,425.86 = 364,783.72 : x
  2. Step 2: Convert to fraction form
    571,791.64/788,425.86 = 364,783.72/x
  3. Step 3: Cross multiply
    571,791.64x = 788,425.86 × 364,783.72
  4. Step 4: Simplify right side
    571,791.64x = 287,604,918,155.00
  5. Step 5: Solve for x
    x = 287,604,918,155.00/571,791.64
  6. Step 6: Final answer
    x = 502,989.02

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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.