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Finding the Fourth Proportional to 477,158.45, 658,486.87 and 262,307.57

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Solution

The fourth proportional to 477,158.45, 658,486.87 and 262,307.57 is: 361,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,158.45 : 658,486.87 = 262,307.57 : x
  2. Step 2: Convert to fraction form
    477,158.45/658,486.87 = 262,307.57/x
  3. Step 3: Cross multiply
    477,158.45x = 658,486.87 × 262,307.57
  4. Step 4: Simplify right side
    477,158.45x = 172,726,086,798.40
  5. Step 5: Solve for x
    x = 172,726,086,798.40/477,158.45
  6. Step 6: Final answer
    x = 361,988.95

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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.