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Finding the Fourth Proportional to 368,556.80, 508,602.24 and 207,411.80

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Solution

The fourth proportional to 368,556.80, 508,602.24 and 207,411.80 is: 286,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,556.80 : 508,602.24 = 207,411.80 : x
  2. Step 2: Convert to fraction form
    368,556.80/508,602.24 = 207,411.80/x
  3. Step 3: Cross multiply
    368,556.80x = 508,602.24 × 207,411.80
  4. Step 4: Simplify right side
    368,556.80x = 105,490,106,082.43
  5. Step 5: Solve for x
    x = 105,490,106,082.43/368,556.80
  6. Step 6: Final answer
    x = 286,224.83

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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.