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Finding the Fourth Proportional to 556,917.32, 768,546.66 and 302,268.52

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Solution

The fourth proportional to 556,917.32, 768,546.66 and 302,268.52 is: 417,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,917.32 : 768,546.66 = 302,268.52 : x
  2. Step 2: Convert to fraction form
    556,917.32/768,546.66 = 302,268.52/x
  3. Step 3: Cross multiply
    556,917.32x = 768,546.66 × 302,268.52
  4. Step 4: Simplify right side
    556,917.32x = 232,307,461,469.14
  5. Step 5: Solve for x
    x = 232,307,461,469.14/556,917.32
  6. Step 6: Final answer
    x = 417,130.97

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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.