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Finding the Fourth Proportional to 369,571.47, 510,006.15 and 208,427.91

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Solution

The fourth proportional to 369,571.47, 510,006.15 and 208,427.91 is: 287,629.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,571.47 : 510,006.15 = 208,427.91 : x
  2. Step 2: Convert to fraction form
    369,571.47/510,006.15 = 208,427.91/x
  3. Step 3: Cross multiply
    369,571.47x = 510,006.15 × 208,427.91
  4. Step 4: Simplify right side
    369,571.47x = 106,299,515,931.65
  5. Step 5: Solve for x
    x = 106,299,515,931.65/369,571.47
  6. Step 6: Final answer
    x = 287,629.12

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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.