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Finding the Fourth Proportional to 567,634.93, 783,333.35 and 312,986.12

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Solution

The fourth proportional to 567,634.93, 783,333.35 and 312,986.12 is: 431,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,634.93 : 783,333.35 = 312,986.12 : x
  2. Step 2: Convert to fraction form
    567,634.93/783,333.35 = 312,986.12/x
  3. Step 3: Cross multiply
    567,634.93x = 783,333.35 × 312,986.12
  4. Step 4: Simplify right side
    567,634.93x = 245,172,461,575.20
  5. Step 5: Solve for x
    x = 245,172,461,575.20/567,634.93
  6. Step 6: Final answer
    x = 431,919.27

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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.