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Finding the Fourth Proportional to 607,930.82, 912,053.80 and 323,387.04

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Solution

The fourth proportional to 607,930.82, 912,053.80 and 323,387.04 is: 485,164.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,930.82 : 912,053.80 = 323,387.04 : x
  2. Step 2: Convert to fraction form
    607,930.82/912,053.80 = 323,387.04/x
  3. Step 3: Cross multiply
    607,930.82x = 912,053.80 × 323,387.04
  4. Step 4: Simplify right side
    607,930.82x = 294,946,378,702.75
  5. Step 5: Solve for x
    x = 294,946,378,702.75/607,930.82
  6. Step 6: Final answer
    x = 485,164.38

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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.