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Finding the Fourth Proportional to 381,663.40, 572,495.10 and 241,580.20

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Solution

The fourth proportional to 381,663.40, 572,495.10 and 241,580.20 is: 362,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,663.40 : 572,495.10 = 241,580.20 : x
  2. Step 2: Convert to fraction form
    381,663.40/572,495.10 = 241,580.20/x
  3. Step 3: Cross multiply
    381,663.40x = 572,495.10 × 241,580.20
  4. Step 4: Simplify right side
    381,663.40x = 138,303,480,757.02
  5. Step 5: Solve for x
    x = 138,303,480,757.02/381,663.40
  6. Step 6: Final answer
    x = 362,370.30

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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.