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Finding the Fourth Proportional to 556,799.96, 768,383.94 and 302,151.15

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Solution

The fourth proportional to 556,799.96, 768,383.94 and 302,151.15 is: 416,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,799.96 : 768,383.94 = 302,151.15 : x
  2. Step 2: Convert to fraction form
    556,799.96/768,383.94 = 302,151.15/x
  3. Step 3: Cross multiply
    556,799.96x = 768,383.94 × 302,151.15
  4. Step 4: Simplify right side
    556,799.96x = 232,168,091,112.53
  5. Step 5: Solve for x
    x = 232,168,091,112.53/556,799.96
  6. Step 6: Final answer
    x = 416,968.58

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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.