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Finding the Fourth Proportional to 658,041.75, 908,097.75 and 356,235.75

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Solution

The fourth proportional to 658,041.75, 908,097.75 and 356,235.75 is: 491,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,041.75 : 908,097.75 = 356,235.75 : x
  2. Step 2: Convert to fraction form
    658,041.75/908,097.75 = 356,235.75/x
  3. Step 3: Cross multiply
    658,041.75x = 908,097.75 × 356,235.75
  4. Step 4: Simplify right side
    658,041.75x = 323,496,883,044.56
  5. Step 5: Solve for x
    x = 323,496,883,044.56/658,041.75
  6. Step 6: Final answer
    x = 491,605.41

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1.5x scale

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.