Home / 808,533.70-1,212,800.55-572,143.30

Finding the Fourth Proportional to 808,533.70, 1,212,800.55 and 572,143.30

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Solution

The fourth proportional to 808,533.70, 1,212,800.55 and 572,143.30 is: 858,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,533.70 : 1,212,800.55 = 572,143.30 : x
  2. Step 2: Convert to fraction form
    808,533.70/1,212,800.55 = 572,143.30/x
  3. Step 3: Cross multiply
    808,533.70x = 1,212,800.55 × 572,143.30
  4. Step 4: Simplify right side
    808,533.70x = 693,895,708,918.82
  5. Step 5: Solve for x
    x = 693,895,708,918.82/808,533.70
  6. Step 6: Final answer
    x = 858,214.95

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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.