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Finding the Fourth Proportional to 625,563.65, 863,254.70 and 339,077.58

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Solution

The fourth proportional to 625,563.65, 863,254.70 and 339,077.58 is: 467,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,563.65 : 863,254.70 = 339,077.58 : x
  2. Step 2: Convert to fraction form
    625,563.65/863,254.70 = 339,077.58/x
  3. Step 3: Cross multiply
    625,563.65x = 863,254.70 × 339,077.58
  4. Step 4: Simplify right side
    625,563.65x = 292,710,314,599.63
  5. Step 5: Solve for x
    x = 292,710,314,599.63/625,563.65
  6. Step 6: Final answer
    x = 467,914.52

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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.