Home / 808,615.16-1,212,922.76-453,878.36

Finding the Fourth Proportional to 808,615.16, 1,212,922.76 and 453,878.36

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Solution

The fourth proportional to 808,615.16, 1,212,922.76 and 453,878.36 is: 680,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,615.16 : 1,212,922.76 = 453,878.36 : x
  2. Step 2: Convert to fraction form
    808,615.16/1,212,922.76 = 453,878.36/x
  3. Step 3: Cross multiply
    808,615.16x = 1,212,922.76 × 453,878.36
  4. Step 4: Simplify right side
    808,615.16x = 550,519,393,115.47
  5. Step 5: Solve for x
    x = 550,519,393,115.47/808,615.16
  6. Step 6: Final answer
    x = 680,817.55

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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.