Home / 808,535.70-1,212,803.55-572,145.30

Finding the Fourth Proportional to 808,535.70, 1,212,803.55 and 572,145.30

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Solution

The fourth proportional to 808,535.70, 1,212,803.55 and 572,145.30 is: 858,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,535.70 : 1,212,803.55 = 572,145.30 : x
  2. Step 2: Convert to fraction form
    808,535.70/1,212,803.55 = 572,145.30/x
  3. Step 3: Cross multiply
    808,535.70x = 1,212,803.55 × 572,145.30
  4. Step 4: Simplify right side
    808,535.70x = 693,899,850,955.82
  5. Step 5: Solve for x
    x = 693,899,850,955.82/808,535.70
  6. Step 6: Final answer
    x = 858,217.95

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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.