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Finding the Fourth Proportional to 285,244.88, 393,637.93 and 157,928.67

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Solution

The fourth proportional to 285,244.88, 393,637.93 and 157,928.67 is: 217,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,244.88 : 393,637.93 = 157,928.67 : x
  2. Step 2: Convert to fraction form
    285,244.88/393,637.93 = 157,928.67/x
  3. Step 3: Cross multiply
    285,244.88x = 393,637.93 × 157,928.67
  4. Step 4: Simplify right side
    285,244.88x = 62,166,714,351.63
  5. Step 5: Solve for x
    x = 62,166,714,351.63/285,244.88
  6. Step 6: Final answer
    x = 217,941.56

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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.