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Finding the Fourth Proportional to 625,336.40, 937,313.40 and 345,054.80

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Solution

The fourth proportional to 625,336.40, 937,313.40 and 345,054.80 is: 517,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,336.40 : 937,313.40 = 345,054.80 : x
  2. Step 2: Convert to fraction form
    625,336.40/937,313.40 = 345,054.80/x
  3. Step 3: Cross multiply
    625,336.40x = 937,313.40 × 345,054.80
  4. Step 4: Simplify right side
    625,336.40x = 323,424,487,774.32
  5. Step 5: Solve for x
    x = 323,424,487,774.32/625,336.40
  6. Step 6: Final answer
    x = 517,200.80

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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.