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Finding the Fourth Proportional to 695,122.34, 959,283.42 and 393,316.34

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Solution

The fourth proportional to 695,122.34, 959,283.42 and 393,316.34 is: 542,784.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,122.34 : 959,283.42 = 393,316.34 : x
  2. Step 2: Convert to fraction form
    695,122.34/959,283.42 = 393,316.34/x
  3. Step 3: Cross multiply
    695,122.34x = 959,283.42 × 393,316.34
  4. Step 4: Simplify right side
    695,122.34x = 377,301,843,777.08
  5. Step 5: Solve for x
    x = 377,301,843,777.08/695,122.34
  6. Step 6: Final answer
    x = 542,784.81

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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.