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Finding the Fourth Proportional to 479,710,797.72, 662,001,122.34 and 259,694,223.72

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Solution

The fourth proportional to 479,710,797.72, 662,001,122.34 and 259,694,223.72 is: 358,378,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,710,797.72 : 662,001,122.34 = 259,694,223.72 : x
  2. Step 2: Convert to fraction form
    479,710,797.72/662,001,122.34 = 259,694,223.72/x
  3. Step 3: Cross multiply
    479,710,797.72x = 662,001,122.34 × 259,694,223.72
  4. Step 4: Simplify right side
    479,710,797.72x = 171,917,867,567,855,072
  5. Step 5: Solve for x
    x = 171,917,867,567,855,072/479,710,797.72
  6. Step 6: Final answer
    x = 358,378,148.64

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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.