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Finding the Fourth Proportional to 553,018.98, 762,772.91 and 369,164.98

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Solution

The fourth proportional to 553,018.98, 762,772.91 and 369,164.98 is: 509,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,018.98 : 762,772.91 = 369,164.98 : x
  2. Step 2: Convert to fraction form
    553,018.98/762,772.91 = 369,164.98/x
  3. Step 3: Cross multiply
    553,018.98x = 762,772.91 × 369,164.98
  4. Step 4: Simplify right side
    553,018.98x = 281,589,046,064.69
  5. Step 5: Solve for x
    x = 281,589,046,064.69/553,018.98
  6. Step 6: Final answer
    x = 509,185.14

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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.