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Finding the Fourth Proportional to 308,938.38, 426,341.44 and 174,802.38

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Solution

The fourth proportional to 308,938.38, 426,341.44 and 174,802.38 is: 241,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,938.38 : 426,341.44 = 174,802.38 : x
  2. Step 2: Convert to fraction form
    308,938.38/426,341.44 = 174,802.38/x
  3. Step 3: Cross multiply
    308,938.38x = 426,341.44 × 174,802.38
  4. Step 4: Simplify right side
    308,938.38x = 74,525,498,404.63
  5. Step 5: Solve for x
    x = 74,525,498,404.63/308,938.38
  6. Step 6: Final answer
    x = 241,230.95

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1.5x scale

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.