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Finding the Fourth Proportional to 617,398.39, 851,739.47 and 362,634.76

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Solution

The fourth proportional to 617,398.39, 851,739.47 and 362,634.76 is: 500,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,398.39 : 851,739.47 = 362,634.76 : x
  2. Step 2: Convert to fraction form
    617,398.39/851,739.47 = 362,634.76/x
  3. Step 3: Cross multiply
    617,398.39x = 851,739.47 × 362,634.76
  4. Step 4: Simplify right side
    617,398.39x = 308,870,336,472.80
  5. Step 5: Solve for x
    x = 308,870,336,472.80/617,398.39
  6. Step 6: Final answer
    x = 500,277.20

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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.