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Finding the Fourth Proportional to 508,059.72, 701,154 and 281,705.22

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Solution

The fourth proportional to 508,059.72, 701,154 and 281,705.22 is: 388,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,059.72 : 701,154 = 281,705.22 : x
  2. Step 2: Convert to fraction form
    508,059.72/701,154 = 281,705.22/x
  3. Step 3: Cross multiply
    508,059.72x = 701,154 × 281,705.22
  4. Step 4: Simplify right side
    508,059.72x = 197,518,741,823.88
  5. Step 5: Solve for x
    x = 197,518,741,823.88/508,059.72
  6. Step 6: Final answer
    x = 388,770.72

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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.