Home / 769,200.30-1,153,800.45-556,623.90

Finding the Fourth Proportional to 769,200.30, 1,153,800.45 and 556,623.90

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Solution

The fourth proportional to 769,200.30, 1,153,800.45 and 556,623.90 is: 834,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,200.30 : 1,153,800.45 = 556,623.90 : x
  2. Step 2: Convert to fraction form
    769,200.30/1,153,800.45 = 556,623.90/x
  3. Step 3: Cross multiply
    769,200.30x = 1,153,800.45 × 556,623.90
  4. Step 4: Simplify right side
    769,200.30x = 642,232,906,300.76
  5. Step 5: Solve for x
    x = 642,232,906,300.76/769,200.30
  6. Step 6: Final answer
    x = 834,935.85

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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.