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Finding the Fourth Proportional to 635,495.76, 953,243.10 and 162,181.08

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Solution

The fourth proportional to 635,495.76, 953,243.10 and 162,181.08 is: 243,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,495.76 : 953,243.10 = 162,181.08 : x
  2. Step 2: Convert to fraction form
    635,495.76/953,243.10 = 162,181.08/x
  3. Step 3: Cross multiply
    635,495.76x = 953,243.10 × 162,181.08
  4. Step 4: Simplify right side
    635,495.76x = 154,597,995,460.55
  5. Step 5: Solve for x
    x = 154,597,995,460.55/635,495.76
  6. Step 6: Final answer
    x = 243,271.48

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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.