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Finding the Fourth Proportional to 393,552.70, 590,347.50 and 127,334.06

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Solution

The fourth proportional to 393,552.70, 590,347.50 and 127,334.06 is: 191,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,552.70 : 590,347.50 = 127,334.06 : x
  2. Step 2: Convert to fraction form
    393,552.70/590,347.50 = 127,334.06/x
  3. Step 3: Cross multiply
    393,552.70x = 590,347.50 × 127,334.06
  4. Step 4: Simplify right side
    393,552.70x = 75,171,343,985.85
  5. Step 5: Solve for x
    x = 75,171,343,985.85/393,552.70
  6. Step 6: Final answer
    x = 191,007.06

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1.5x scale

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.