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Finding the Fourth Proportional to 603,762.12, 905,674.14 and 154,486.80

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Solution

The fourth proportional to 603,762.12, 905,674.14 and 154,486.80 is: 231,738.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,762.12 : 905,674.14 = 154,486.80 : x
  2. Step 2: Convert to fraction form
    603,762.12/905,674.14 = 154,486.80/x
  3. Step 3: Cross multiply
    603,762.12x = 905,674.14 × 154,486.80
  4. Step 4: Simplify right side
    603,762.12x = 139,914,699,731.35
  5. Step 5: Solve for x
    x = 139,914,699,731.35/603,762.12
  6. Step 6: Final answer
    x = 231,738.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.