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Finding the Fourth Proportional to 505,331.48, 758,393.22 and 352,534.88

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Solution

The fourth proportional to 505,331.48, 758,393.22 and 352,534.88 is: 529,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,331.48 : 758,393.22 = 352,534.88 : x
  2. Step 2: Convert to fraction form
    505,331.48/758,393.22 = 352,534.88/x
  3. Step 3: Cross multiply
    505,331.48x = 758,393.22 × 352,534.88
  4. Step 4: Simplify right side
    505,331.48x = 267,360,062,805.51
  5. Step 5: Solve for x
    x = 267,360,062,805.51/505,331.48
  6. Step 6: Final answer
    x = 529,078.58

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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.