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Finding the Fourth Proportional to 617,867.70, 926,801.55 and 369,035.70

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Solution

The fourth proportional to 617,867.70, 926,801.55 and 369,035.70 is: 553,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,867.70 : 926,801.55 = 369,035.70 : x
  2. Step 2: Convert to fraction form
    617,867.70/926,801.55 = 369,035.70/x
  3. Step 3: Cross multiply
    617,867.70x = 926,801.55 × 369,035.70
  4. Step 4: Simplify right side
    617,867.70x = 342,022,858,765.34
  5. Step 5: Solve for x
    x = 342,022,858,765.34/617,867.70
  6. Step 6: Final answer
    x = 553,553.55

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Similar ratio
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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.