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Finding the Fourth Proportional to 571,583.88, 788,790.42 and 316,939.32

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Solution

The fourth proportional to 571,583.88, 788,790.42 and 316,939.32 is: 437,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,583.88 : 788,790.42 = 316,939.32 : x
  2. Step 2: Convert to fraction form
    571,583.88/788,790.42 = 316,939.32/x
  3. Step 3: Cross multiply
    571,583.88x = 788,790.42 × 316,939.32
  4. Step 4: Simplify right side
    571,583.88x = 249,998,699,337.31
  5. Step 5: Solve for x
    x = 249,998,699,337.31/571,583.88
  6. Step 6: Final answer
    x = 437,378.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.