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Finding the Fourth Proportional to 625,533.10, 863,236.95 and 339,053.38

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Solution

The fourth proportional to 625,533.10, 863,236.95 and 339,053.38 is: 467,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,533.10 : 863,236.95 = 339,053.38 : x
  2. Step 2: Convert to fraction form
    625,533.10/863,236.95 = 339,053.38/x
  3. Step 3: Cross multiply
    625,533.10x = 863,236.95 × 339,053.38
  4. Step 4: Simplify right side
    625,533.10x = 292,683,402,208.85
  5. Step 5: Solve for x
    x = 292,683,402,208.85/625,533.10
  6. Step 6: Final answer
    x = 467,894.35

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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.