Home / 756,127.53-1,043,446.40-411,977.80

Finding the Fourth Proportional to 756,127.53, 1,043,446.40 and 411,977.80

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Solution

The fourth proportional to 756,127.53, 1,043,446.40 and 411,977.80 is: 568,524.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,127.53 : 1,043,446.40 = 411,977.80 : x
  2. Step 2: Convert to fraction form
    756,127.53/1,043,446.40 = 411,977.80/x
  3. Step 3: Cross multiply
    756,127.53x = 1,043,446.40 × 411,977.80
  4. Step 4: Simplify right side
    756,127.53x = 429,876,749,527.25
  5. Step 5: Solve for x
    x = 429,876,749,527.25/756,127.53
  6. Step 6: Final answer
    x = 568,524.13

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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.