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Finding the Fourth Proportional to 490,417.80, 735,991.74 and 364,351.56

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Solution

The fourth proportional to 490,417.80, 735,991.74 and 364,351.56 is: 546,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,417.80 : 735,991.74 = 364,351.56 : x
  2. Step 2: Convert to fraction form
    490,417.80/735,991.74 = 364,351.56/x
  3. Step 3: Cross multiply
    490,417.80x = 735,991.74 × 364,351.56
  4. Step 4: Simplify right side
    490,417.80x = 268,159,738,616.11
  5. Step 5: Solve for x
    x = 268,159,738,616.11/490,417.80
  6. Step 6: Final answer
    x = 546,798.54

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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.