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Finding the Fourth Proportional to 393,193.11, 541,483.47 and 354,098.04

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Solution

The fourth proportional to 393,193.11, 541,483.47 and 354,098.04 is: 487,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,193.11 : 541,483.47 = 354,098.04 : x
  2. Step 2: Convert to fraction form
    393,193.11/541,483.47 = 354,098.04/x
  3. Step 3: Cross multiply
    393,193.11x = 541,483.47 × 354,098.04
  4. Step 4: Simplify right side
    393,193.11x = 191,738,235,419.40
  5. Step 5: Solve for x
    x = 191,738,235,419.40/393,193.11
  6. Step 6: Final answer
    x = 487,643.94

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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.