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Finding the Fourth Proportional to 508,418.30, 762,617.87 and 124,173.34

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Solution

The fourth proportional to 508,418.30, 762,617.87 and 124,173.34 is: 186,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,418.30 : 762,617.87 = 124,173.34 : x
  2. Step 2: Convert to fraction form
    508,418.30/762,617.87 = 124,173.34/x
  3. Step 3: Cross multiply
    508,418.30x = 762,617.87 × 124,173.34
  4. Step 4: Simplify right side
    508,418.30x = 94,696,805,999.82
  5. Step 5: Solve for x
    x = 94,696,805,999.82/508,418.30
  6. Step 6: Final answer
    x = 186,257.67

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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.