Home / 1,212,103.98-1,672,672.74-668,227.20

Finding the Fourth Proportional to 1,212,103.98, 1,672,672.74 and 668,227.20

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Solution

The fourth proportional to 1,212,103.98, 1,672,672.74 and 668,227.20 is: 922,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,103.98 : 1,672,672.74 = 668,227.20 : x
  2. Step 2: Convert to fraction form
    1,212,103.98/1,672,672.74 = 668,227.20/x
  3. Step 3: Cross multiply
    1,212,103.98x = 1,672,672.74 × 668,227.20
  4. Step 4: Simplify right side
    1,212,103.98x = 1,117,725,421,566.53
  5. Step 5: Solve for x
    x = 1,117,725,421,566.53/1,212,103.98
  6. Step 6: Final answer
    x = 922,136.58

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Double scale
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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.