Home / 786,541.40-1,085,519.28-447,060.68

Finding the Fourth Proportional to 786,541.40, 1,085,519.28 and 447,060.68

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Solution

The fourth proportional to 786,541.40, 1,085,519.28 and 447,060.68 is: 616,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,541.40 : 1,085,519.28 = 447,060.68 : x
  2. Step 2: Convert to fraction form
    786,541.40/1,085,519.28 = 447,060.68/x
  3. Step 3: Cross multiply
    786,541.40x = 1,085,519.28 × 447,060.68
  4. Step 4: Simplify right side
    786,541.40x = 485,292,987,469.91
  5. Step 5: Solve for x
    x = 485,292,987,469.91/786,541.40
  6. Step 6: Final answer
    x = 616,996.11

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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.