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Finding the Fourth Proportional to 384,917.60, 577,376.40 and 104,434.40

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Solution

The fourth proportional to 384,917.60, 577,376.40 and 104,434.40 is: 156,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,917.60 : 577,376.40 = 104,434.40 : x
  2. Step 2: Convert to fraction form
    384,917.60/577,376.40 = 104,434.40/x
  3. Step 3: Cross multiply
    384,917.60x = 577,376.40 × 104,434.40
  4. Step 4: Simplify right side
    384,917.60x = 60,297,957,908.16
  5. Step 5: Solve for x
    x = 60,297,957,908.16/384,917.60
  6. Step 6: Final answer
    x = 156,651.60

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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.