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Finding the Fourth Proportional to 464,188.39, 640,625.36 and 260,239.70

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Solution

The fourth proportional to 464,188.39, 640,625.36 and 260,239.70 is: 359,156.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,188.39 : 640,625.36 = 260,239.70 : x
  2. Step 2: Convert to fraction form
    464,188.39/640,625.36 = 260,239.70/x
  3. Step 3: Cross multiply
    464,188.39x = 640,625.36 × 260,239.70
  4. Step 4: Simplify right side
    464,188.39x = 166,716,151,799.16
  5. Step 5: Solve for x
    x = 166,716,151,799.16/464,188.39
  6. Step 6: Final answer
    x = 359,156.23

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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.