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Finding the Fourth Proportional to 1,094,621.88, 1,509,746.91 and 941,915.97

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Solution

The fourth proportional to 1,094,621.88, 1,509,746.91 and 941,915.97 is: 1,299,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094,621.88 : 1,509,746.91 = 941,915.97 : x
  2. Step 2: Convert to fraction form
    1,094,621.88/1,509,746.91 = 941,915.97/x
  3. Step 3: Cross multiply
    1,094,621.88x = 1,509,746.91 × 941,915.97
  4. Step 4: Simplify right side
    1,094,621.88x = 1,422,054,725,187.15
  5. Step 5: Solve for x
    x = 1,422,054,725,187.15/1,094,621.88
  6. Step 6: Final answer
    x = 1,299,128.72

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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.