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Finding the Fourth Proportional to 627,801.46, 940,666.71 and 361,785.46

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Solution

The fourth proportional to 627,801.46, 940,666.71 and 361,785.46 is: 542,081.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,801.46 : 940,666.71 = 361,785.46 : x
  2. Step 2: Convert to fraction form
    627,801.46/940,666.71 = 361,785.46/x
  3. Step 3: Cross multiply
    627,801.46x = 940,666.71 × 361,785.46
  4. Step 4: Simplify right side
    627,801.46x = 340,319,538,384.04
  5. Step 5: Solve for x
    x = 340,319,538,384.04/627,801.46
  6. Step 6: Final answer
    x = 542,081.47

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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.