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Finding the Fourth Proportional to 372,688.84, 514,316.84 and 211,548.86

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Solution

The fourth proportional to 372,688.84, 514,316.84 and 211,548.86 is: 291,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,688.84 : 514,316.84 = 211,548.86 : x
  2. Step 2: Convert to fraction form
    372,688.84/514,316.84 = 211,548.86/x
  3. Step 3: Cross multiply
    372,688.84x = 514,316.84 × 211,548.86
  4. Step 4: Simplify right side
    372,688.84x = 108,803,141,180.80
  5. Step 5: Solve for x
    x = 108,803,141,180.80/372,688.84
  6. Step 6: Final answer
    x = 291,940.97

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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.