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Finding the Fourth Proportional to 635,279.56, 876,687.51 and 348,818.20

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Solution

The fourth proportional to 635,279.56, 876,687.51 and 348,818.20 is: 481,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,279.56 : 876,687.51 = 348,818.20 : x
  2. Step 2: Convert to fraction form
    635,279.56/876,687.51 = 348,818.20/x
  3. Step 3: Cross multiply
    635,279.56x = 876,687.51 × 348,818.20
  4. Step 4: Simplify right side
    635,279.56x = 305,804,559,200.68
  5. Step 5: Solve for x
    x = 305,804,559,200.68/635,279.56
  6. Step 6: Final answer
    x = 481,370.06

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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.