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Finding the Fourth Proportional to 484,926.25, 669,504.60 and 357,379.69

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Solution

The fourth proportional to 484,926.25, 669,504.60 and 357,379.69 is: 493,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,926.25 : 669,504.60 = 357,379.69 : x
  2. Step 2: Convert to fraction form
    484,926.25/669,504.60 = 357,379.69/x
  3. Step 3: Cross multiply
    484,926.25x = 669,504.60 × 357,379.69
  4. Step 4: Simplify right side
    484,926.25x = 239,267,343,054.05
  5. Step 5: Solve for x
    x = 239,267,343,054.05/484,926.25
  6. Step 6: Final answer
    x = 493,409.76

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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.