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Finding the Fourth Proportional to 366,031.73, 505,128.94 and 210,897.28

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Solution

The fourth proportional to 366,031.73, 505,128.94 and 210,897.28 is: 291,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,031.73 : 505,128.94 = 210,897.28 : x
  2. Step 2: Convert to fraction form
    366,031.73/505,128.94 = 210,897.28/x
  3. Step 3: Cross multiply
    366,031.73x = 505,128.94 × 210,897.28
  4. Step 4: Simplify right side
    366,031.73x = 106,530,319,495.28
  5. Step 5: Solve for x
    x = 106,530,319,495.28/366,031.73
  6. Step 6: Final answer
    x = 291,041.22

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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.