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Finding the Fourth Proportional to 357,274.48, 493,007.68 and 196,129.32

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Solution

The fourth proportional to 357,274.48, 493,007.68 and 196,129.32 is: 270,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,274.48 : 493,007.68 = 196,129.32 : x
  2. Step 2: Convert to fraction form
    357,274.48/493,007.68 = 196,129.32/x
  3. Step 3: Cross multiply
    357,274.48x = 493,007.68 × 196,129.32
  4. Step 4: Simplify right side
    357,274.48x = 96,693,261,033.18
  5. Step 5: Solve for x
    x = 96,693,261,033.18/357,274.48
  6. Step 6: Final answer
    x = 270,641.39

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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.