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Finding the Fourth Proportional to 603,427.38, 832,637.31 and 348,729.42

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Solution

The fourth proportional to 603,427.38, 832,637.31 and 348,729.42 is: 481,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,427.38 : 832,637.31 = 348,729.42 : x
  2. Step 2: Convert to fraction form
    603,427.38/832,637.31 = 348,729.42/x
  3. Step 3: Cross multiply
    603,427.38x = 832,637.31 × 348,729.42
  4. Step 4: Simplify right side
    603,427.38x = 290,365,126,186.66
  5. Step 5: Solve for x
    x = 290,365,126,186.66/603,427.38
  6. Step 6: Final answer
    x = 481,193.16

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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.