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Finding the Fourth Proportional to 617,025.57, 851,420.56 and 341,364.81

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Solution

The fourth proportional to 617,025.57, 851,420.56 and 341,364.81 is: 471,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,025.57 : 851,420.56 = 341,364.81 : x
  2. Step 2: Convert to fraction form
    617,025.57/851,420.56 = 341,364.81/x
  3. Step 3: Cross multiply
    617,025.57x = 851,420.56 × 341,364.81
  4. Step 4: Simplify right side
    617,025.57x = 290,645,017,694.49
  5. Step 5: Solve for x
    x = 290,645,017,694.49/617,025.57
  6. Step 6: Final answer
    x = 471,042.10

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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.