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Finding the Fourth Proportional to 397,430.26, 548,594.58 and 236,284.48

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Solution

The fourth proportional to 397,430.26, 548,594.58 and 236,284.48 is: 326,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,430.26 : 548,594.58 = 236,284.48 : x
  2. Step 2: Convert to fraction form
    397,430.26/548,594.58 = 236,284.48/x
  3. Step 3: Cross multiply
    397,430.26x = 548,594.58 × 236,284.48
  4. Step 4: Simplify right side
    397,430.26x = 129,624,385,066.12
  5. Step 5: Solve for x
    x = 129,624,385,066.12/397,430.26
  6. Step 6: Final answer
    x = 326,156.30

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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.