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Finding the Fourth Proportional to 368,592.98, 508,603.45 and 207,438.42

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Solution

The fourth proportional to 368,592.98, 508,603.45 and 207,438.42 is: 286,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,592.98 : 508,603.45 = 207,438.42 : x
  2. Step 2: Convert to fraction form
    368,592.98/508,603.45 = 207,438.42/x
  3. Step 3: Cross multiply
    368,592.98x = 508,603.45 × 207,438.42
  4. Step 4: Simplify right side
    368,592.98x = 105,503,896,074.55
  5. Step 5: Solve for x
    x = 105,503,896,074.55/368,592.98
  6. Step 6: Final answer
    x = 286,234.14

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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.