Home / 755,883.90-1,043,121.20-411,718.77

Finding the Fourth Proportional to 755,883.90, 1,043,121.20 and 411,718.77

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Solution

The fourth proportional to 755,883.90, 1,043,121.20 and 411,718.77 is: 568,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,883.90 : 1,043,121.20 = 411,718.77 : x
  2. Step 2: Convert to fraction form
    755,883.90/1,043,121.20 = 411,718.77/x
  3. Step 3: Cross multiply
    755,883.90x = 1,043,121.20 × 411,718.77
  4. Step 4: Simplify right side
    755,883.90x = 429,472,575,366.33
  5. Step 5: Solve for x
    x = 429,472,575,366.33/755,883.90
  6. Step 6: Final answer
    x = 568,172.67

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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.