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Finding the Fourth Proportional to 547,844.69, 756,100.76 and 315,266.84

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Solution

The fourth proportional to 547,844.69, 756,100.76 and 315,266.84 is: 435,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,844.69 : 756,100.76 = 315,266.84 : x
  2. Step 2: Convert to fraction form
    547,844.69/756,100.76 = 315,266.84/x
  3. Step 3: Cross multiply
    547,844.69x = 756,100.76 × 315,266.84
  4. Step 4: Simplify right side
    547,844.69x = 238,373,491,969.96
  5. Step 5: Solve for x
    x = 238,373,491,969.96/547,844.69
  6. Step 6: Final answer
    x = 435,111.44

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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.