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Finding the Fourth Proportional to 474,090.60, 654,773.14 and 438,218.34

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Solution

The fourth proportional to 474,090.60, 654,773.14 and 438,218.34 is: 605,229.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,090.60 : 654,773.14 = 438,218.34 : x
  2. Step 2: Convert to fraction form
    474,090.60/654,773.14 = 438,218.34/x
  3. Step 3: Cross multiply
    474,090.60x = 654,773.14 × 438,218.34
  4. Step 4: Simplify right side
    474,090.60x = 286,933,598,487.39
  5. Step 5: Solve for x
    x = 286,933,598,487.39/474,090.60
  6. Step 6: Final answer
    x = 605,229.46

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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.