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Finding the Fourth Proportional to 556,771.19, 768,346.28 and 302,122.37

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Solution

The fourth proportional to 556,771.19, 768,346.28 and 302,122.37 is: 416,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,771.19 : 768,346.28 = 302,122.37 : x
  2. Step 2: Convert to fraction form
    556,771.19/768,346.28 = 302,122.37/x
  3. Step 3: Cross multiply
    556,771.19x = 768,346.28 × 302,122.37
  4. Step 4: Simplify right side
    556,771.19x = 232,134,593,741.94
  5. Step 5: Solve for x
    x = 232,134,593,741.94/556,771.19
  6. Step 6: Final answer
    x = 416,929.97

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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.