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Finding the Fourth Proportional to 368,710.08, 508,829.75 and 207,571.22

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Solution

The fourth proportional to 368,710.08, 508,829.75 and 207,571.22 is: 286,453.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,710.08 : 508,829.75 = 207,571.22 : x
  2. Step 2: Convert to fraction form
    368,710.08/508,829.75 = 207,571.22/x
  3. Step 3: Cross multiply
    368,710.08x = 508,829.75 × 207,571.22
  4. Step 4: Simplify right side
    368,710.08x = 105,618,413,946.46
  5. Step 5: Solve for x
    x = 105,618,413,946.46/368,710.08
  6. Step 6: Final answer
    x = 286,453.83

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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.