Home / 756,971.49-1,135,561.72-277,136.40

Finding the Fourth Proportional to 756,971.49, 1,135,561.72 and 277,136.40

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Solution

The fourth proportional to 756,971.49, 1,135,561.72 and 277,136.40 is: 415,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,971.49 : 1,135,561.72 = 277,136.40 : x
  2. Step 2: Convert to fraction form
    756,971.49/1,135,561.72 = 277,136.40/x
  3. Step 3: Cross multiply
    756,971.49x = 1,135,561.72 × 277,136.40
  4. Step 4: Simplify right side
    756,971.49x = 314,705,487,058.61
  5. Step 5: Solve for x
    x = 314,705,487,058.61/756,971.49
  6. Step 6: Final answer
    x = 415,742.85

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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.