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Finding the Fourth Proportional to 482,838, 666,316.44 and 270,870

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Solution

The fourth proportional to 482,838, 666,316.44 and 270,870 is: 373,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,838 : 666,316.44 = 270,870 : x
  2. Step 2: Convert to fraction form
    482,838/666,316.44 = 270,870/x
  3. Step 3: Cross multiply
    482,838x = 666,316.44 × 270,870
  4. Step 4: Simplify right side
    482,838x = 180,485,134,102.80
  5. Step 5: Solve for x
    x = 180,485,134,102.80/482,838
  6. Step 6: Final answer
    x = 373,800.60

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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.