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Finding the Fourth Proportional to 903,896, 1,247,375.52 and 496,000.16

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Solution

The fourth proportional to 903,896, 1,247,375.52 and 496,000.16 is: 684,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,896 : 1,247,375.52 = 496,000.16 : x
  2. Step 2: Convert to fraction form
    903,896/1,247,375.52 = 496,000.16/x
  3. Step 3: Cross multiply
    903,896x = 1,247,375.52 × 496,000.16
  4. Step 4: Simplify right side
    903,896x = 618,698,457,500.08
  5. Step 5: Solve for x
    x = 618,698,457,500.08/903,896
  6. Step 6: Final answer
    x = 684,479.69

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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.