Home / 729,038.20-1,093,557.30-640,464.70

Finding the Fourth Proportional to 729,038.20, 1,093,557.30 and 640,464.70

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Solution

The fourth proportional to 729,038.20, 1,093,557.30 and 640,464.70 is: 960,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,038.20 : 1,093,557.30 = 640,464.70 : x
  2. Step 2: Convert to fraction form
    729,038.20/1,093,557.30 = 640,464.70/x
  3. Step 3: Cross multiply
    729,038.20x = 1,093,557.30 × 640,464.70
  4. Step 4: Simplify right side
    729,038.20x = 700,384,848,077.31
  5. Step 5: Solve for x
    x = 700,384,848,077.31/729,038.20
  6. Step 6: Final answer
    x = 960,697.05

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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.