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Finding the Fourth Proportional to 556,046.35, 767,275.27 and 394,842.58

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Solution

The fourth proportional to 556,046.35, 767,275.27 and 394,842.58 is: 544,833.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,046.35 : 767,275.27 = 394,842.58 : x
  2. Step 2: Convert to fraction form
    556,046.35/767,275.27 = 394,842.58/x
  3. Step 3: Cross multiply
    556,046.35x = 767,275.27 × 394,842.58
  4. Step 4: Simplify right side
    556,046.35x = 302,952,947,177.00
  5. Step 5: Solve for x
    x = 302,952,947,177.00/556,046.35
  6. Step 6: Final answer
    x = 544,833.98

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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.