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Finding the Fourth Proportional to 448,082.10, 672,123.15 and 406,610.10

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Solution

The fourth proportional to 448,082.10, 672,123.15 and 406,610.10 is: 609,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,082.10 : 672,123.15 = 406,610.10 : x
  2. Step 2: Convert to fraction form
    448,082.10/672,123.15 = 406,610.10/x
  3. Step 3: Cross multiply
    448,082.10x = 672,123.15 × 406,610.10
  4. Step 4: Simplify right side
    448,082.10x = 273,292,061,233.82
  5. Step 5: Solve for x
    x = 273,292,061,233.82/448,082.10
  6. Step 6: Final answer
    x = 609,915.15

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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.