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Finding the Fourth Proportional to 384,117.60, 576,176.40 and 343,682.40

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Solution

The fourth proportional to 384,117.60, 576,176.40 and 343,682.40 is: 515,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,117.60 : 576,176.40 = 343,682.40 : x
  2. Step 2: Convert to fraction form
    384,117.60/576,176.40 = 343,682.40/x
  3. Step 3: Cross multiply
    384,117.60x = 576,176.40 × 343,682.40
  4. Step 4: Simplify right side
    384,117.60x = 198,021,687,975.36
  5. Step 5: Solve for x
    x = 198,021,687,975.36/384,117.60
  6. Step 6: Final answer
    x = 515,523.60

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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.