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Finding the Fourth Proportional to 454,790.68, 627,783.42 and 357,743.32

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Solution

The fourth proportional to 454,790.68, 627,783.42 and 357,743.32 is: 493,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,790.68 : 627,783.42 = 357,743.32 : x
  2. Step 2: Convert to fraction form
    454,790.68/627,783.42 = 357,743.32/x
  3. Step 3: Cross multiply
    454,790.68x = 627,783.42 × 357,743.32
  4. Step 4: Simplify right side
    454,790.68x = 224,585,324,911.75
  5. Step 5: Solve for x
    x = 224,585,324,911.75/454,790.68
  6. Step 6: Final answer
    x = 493,821.30

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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.