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Finding the Fourth Proportional to 677,236.32, 934,596.63 and 371,340.63

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Solution

The fourth proportional to 677,236.32, 934,596.63 and 371,340.63 is: 512,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,236.32 : 934,596.63 = 371,340.63 : x
  2. Step 2: Convert to fraction form
    677,236.32/934,596.63 = 371,340.63/x
  3. Step 3: Cross multiply
    677,236.32x = 934,596.63 × 371,340.63
  4. Step 4: Simplify right side
    677,236.32x = 347,053,701,380.08
  5. Step 5: Solve for x
    x = 347,053,701,380.08/677,236.32
  6. Step 6: Final answer
    x = 512,455.83

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Double scale
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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.