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Finding the Fourth Proportional to 625,611.69, 936,902.13 and 432,946.24

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Solution

The fourth proportional to 625,611.69, 936,902.13 and 432,946.24 is: 648,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,611.69 : 936,902.13 = 432,946.24 : x
  2. Step 2: Convert to fraction form
    625,611.69/936,902.13 = 432,946.24/x
  3. Step 3: Cross multiply
    625,611.69x = 936,902.13 × 432,946.24
  4. Step 4: Simplify right side
    625,611.69x = 405,628,254,431.49
  5. Step 5: Solve for x
    x = 405,628,254,431.49/625,611.69
  6. Step 6: Final answer
    x = 648,370.64

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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.