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Finding the Fourth Proportional to 460,938, 636,094.48 and 248,970

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Solution

The fourth proportional to 460,938, 636,094.48 and 248,970 is: 343,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,938 : 636,094.48 = 248,970 : x
  2. Step 2: Convert to fraction form
    460,938/636,094.48 = 248,970/x
  3. Step 3: Cross multiply
    460,938x = 636,094.48 × 248,970
  4. Step 4: Simplify right side
    460,938x = 158,368,442,685.60
  5. Step 5: Solve for x
    x = 158,368,442,685.60/460,938
  6. Step 6: Final answer
    x = 343,578.62

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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.