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Finding the Fourth Proportional to 556,440.84, 767,039.22 and 341,181.72

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Solution

The fourth proportional to 556,440.84, 767,039.22 and 341,181.72 is: 470,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,440.84 : 767,039.22 = 341,181.72 : x
  2. Step 2: Convert to fraction form
    556,440.84/767,039.22 = 341,181.72/x
  3. Step 3: Cross multiply
    556,440.84x = 767,039.22 × 341,181.72
  4. Step 4: Simplify right side
    556,440.84x = 261,699,760,387.06
  5. Step 5: Solve for x
    x = 261,699,760,387.06/556,440.84
  6. Step 6: Final answer
    x = 470,310.12

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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.