Home / 1,220,205.54-1,683,880.72-668,920.26

Finding the Fourth Proportional to 1,220,205.54, 1,683,880.72 and 668,920.26

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Solution

The fourth proportional to 1,220,205.54, 1,683,880.72 and 668,920.26 is: 923,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,205.54 : 1,683,880.72 = 668,920.26 : x
  2. Step 2: Convert to fraction form
    1,220,205.54/1,683,880.72 = 668,920.26/x
  3. Step 3: Cross multiply
    1,220,205.54x = 1,683,880.72 × 668,920.26
  4. Step 4: Simplify right side
    1,220,205.54x = 1,126,381,929,031.39
  5. Step 5: Solve for x
    x = 1,126,381,929,031.39/1,220,205.54
  6. Step 6: Final answer
    x = 923,108.36

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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.