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Finding the Fourth Proportional to 571,701.44, 788,928.12 and 317,076.32

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Solution

The fourth proportional to 571,701.44, 788,928.12 and 317,076.32 is: 437,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,701.44 : 788,928.12 = 317,076.32 : x
  2. Step 2: Convert to fraction form
    571,701.44/788,928.12 = 317,076.32/x
  3. Step 3: Cross multiply
    571,701.44x = 788,928.12 × 317,076.32
  4. Step 4: Simplify right side
    571,701.44x = 250,150,425,034.12
  5. Step 5: Solve for x
    x = 250,150,425,034.12/571,701.44
  6. Step 6: Final answer
    x = 437,554.30

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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.