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Finding the Fourth Proportional to 522,315.55, 783,473.58 and 344,781.06

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Solution

The fourth proportional to 522,315.55, 783,473.58 and 344,781.06 is: 517,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,315.55 : 783,473.58 = 344,781.06 : x
  2. Step 2: Convert to fraction form
    522,315.55/783,473.58 = 344,781.06/x
  3. Step 3: Cross multiply
    522,315.55x = 783,473.58 × 344,781.06
  4. Step 4: Simplify right side
    522,315.55x = 270,126,851,394.40
  5. Step 5: Solve for x
    x = 270,126,851,394.40/522,315.55
  6. Step 6: Final answer
    x = 517,171.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.