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Finding the Fourth Proportional to 379,411.69, 569,179.32 and 177,210.01

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Solution

The fourth proportional to 379,411.69, 569,179.32 and 177,210.01 is: 265,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,411.69 : 569,179.32 = 177,210.01 : x
  2. Step 2: Convert to fraction form
    379,411.69/569,179.32 = 177,210.01/x
  3. Step 3: Cross multiply
    379,411.69x = 569,179.32 × 177,210.01
  4. Step 4: Simplify right side
    379,411.69x = 100,864,272,988.99
  5. Step 5: Solve for x
    x = 100,864,272,988.99/379,411.69
  6. Step 6: Final answer
    x = 265,843.87

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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.