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Finding the Fourth Proportional to 882,194, 1,217,437.08 and 479,794.64

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Solution

The fourth proportional to 882,194, 1,217,437.08 and 479,794.64 is: 662,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,194 : 1,217,437.08 = 479,794.64 : x
  2. Step 2: Convert to fraction form
    882,194/1,217,437.08 = 479,794.64/x
  3. Step 3: Cross multiply
    882,194x = 1,217,437.08 × 479,794.64
  4. Step 4: Simplify right side
    882,194x = 584,119,785,521.25
  5. Step 5: Solve for x
    x = 584,119,785,521.25/882,194
  6. Step 6: Final answer
    x = 662,121.69

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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.