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Finding the Fourth Proportional to 572,010.49, 857,679.28 and 217,049.46

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Solution

The fourth proportional to 572,010.49, 857,679.28 and 217,049.46 is: 325,446.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,010.49 : 857,679.28 = 217,049.46 : x
  2. Step 2: Convert to fraction form
    572,010.49/857,679.28 = 217,049.46/x
  3. Step 3: Cross multiply
    572,010.49x = 857,679.28 × 217,049.46
  4. Step 4: Simplify right side
    572,010.49x = 186,158,824,577.19
  5. Step 5: Solve for x
    x = 186,158,824,577.19/572,010.49
  6. Step 6: Final answer
    x = 325,446.52

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Double scale
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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.