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Finding the Fourth Proportional to 350,358.40, 525,796.80 and 231,990.40

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Solution

The fourth proportional to 350,358.40, 525,796.80 and 231,990.40 is: 348,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,358.40 : 525,796.80 = 231,990.40 : x
  2. Step 2: Convert to fraction form
    350,358.40/525,796.80 = 231,990.40/x
  3. Step 3: Cross multiply
    350,358.40x = 525,796.80 × 231,990.40
  4. Step 4: Simplify right side
    350,358.40x = 121,979,809,950.72
  5. Step 5: Solve for x
    x = 121,979,809,950.72/350,358.40
  6. Step 6: Final answer
    x = 348,157.23

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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.