Home / 1,078,455.30-1,617,682.95-517,200.90

Finding the Fourth Proportional to 1,078,455.30, 1,617,682.95 and 517,200.90

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Solution

The fourth proportional to 1,078,455.30, 1,617,682.95 and 517,200.90 is: 775,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,455.30 : 1,617,682.95 = 517,200.90 : x
  2. Step 2: Convert to fraction form
    1,078,455.30/1,617,682.95 = 517,200.90/x
  3. Step 3: Cross multiply
    1,078,455.30x = 1,617,682.95 × 517,200.90
  4. Step 4: Simplify right side
    1,078,455.30x = 836,667,077,654.66
  5. Step 5: Solve for x
    x = 836,667,077,654.66/1,078,455.30
  6. Step 6: Final answer
    x = 775,801.35

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Double scale
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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.