Home / 612,947.91-845,984.62-383,611.80

Finding the Fourth Proportional to 612,947.91, 845,984.62 and 383,611.80

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Solution

The fourth proportional to 612,947.91, 845,984.62 and 383,611.80 is: 529,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,947.91 : 845,984.62 = 383,611.80 : x
  2. Step 2: Convert to fraction form
    612,947.91/845,984.62 = 383,611.80/x
  3. Step 3: Cross multiply
    612,947.91x = 845,984.62 × 383,611.80
  4. Step 4: Simplify right side
    612,947.91x = 324,529,680,932.46
  5. Step 5: Solve for x
    x = 324,529,680,932.46/612,947.91
  6. Step 6: Final answer
    x = 529,457.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.