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Finding the Fourth Proportional to 653,118.98, 980,051.56 and 253,707.78

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Solution

The fourth proportional to 653,118.98, 980,051.56 and 253,707.78 is: 380,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,118.98 : 980,051.56 = 253,707.78 : x
  2. Step 2: Convert to fraction form
    653,118.98/980,051.56 = 253,707.78/x
  3. Step 3: Cross multiply
    653,118.98x = 980,051.56 × 253,707.78
  4. Step 4: Simplify right side
    653,118.98x = 248,646,705,573.14
  5. Step 5: Solve for x
    x = 248,646,705,573.14/653,118.98
  6. Step 6: Final answer
    x = 380,706.60

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Similar ratio
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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.