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Finding the Fourth Proportional to 637,735.40, 956,738.02 and 211,247.06

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Solution

The fourth proportional to 637,735.40, 956,738.02 and 211,247.06 is: 316,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,735.40 : 956,738.02 = 211,247.06 : x
  2. Step 2: Convert to fraction form
    637,735.40/956,738.02 = 211,247.06/x
  3. Step 3: Cross multiply
    637,735.40x = 956,738.02 × 211,247.06
  4. Step 4: Simplify right side
    637,735.40x = 202,108,093,915.22
  5. Step 5: Solve for x
    x = 202,108,093,915.22/637,735.40
  6. Step 6: Final answer
    x = 316,915.28

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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.