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Finding the Fourth Proportional to 406,427.31, 560,755.44 and 243,064.08

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Solution

The fourth proportional to 406,427.31, 560,755.44 and 243,064.08 is: 335,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,427.31 : 560,755.44 = 243,064.08 : x
  2. Step 2: Convert to fraction form
    406,427.31/560,755.44 = 243,064.08/x
  3. Step 3: Cross multiply
    406,427.31x = 560,755.44 × 243,064.08
  4. Step 4: Simplify right side
    406,427.31x = 136,299,505,128.60
  5. Step 5: Solve for x
    x = 136,299,505,128.60/406,427.31
  6. Step 6: Final answer
    x = 335,360.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.