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Finding the Fourth Proportional to 571,153.73, 788,202.27 and 313,013.48

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Solution

The fourth proportional to 571,153.73, 788,202.27 and 313,013.48 is: 431,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,153.73 : 788,202.27 = 313,013.48 : x
  2. Step 2: Convert to fraction form
    571,153.73/788,202.27 = 313,013.48/x
  3. Step 3: Cross multiply
    571,153.73x = 788,202.27 × 313,013.48
  4. Step 4: Simplify right side
    571,153.73x = 246,717,931,535.59
  5. Step 5: Solve for x
    x = 246,717,931,535.59/571,153.73
  6. Step 6: Final answer
    x = 431,964.15

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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.