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Finding the Fourth Proportional to 556,440.46, 767,889.19 and 301,791.65

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Solution

The fourth proportional to 556,440.46, 767,889.19 and 301,791.65 is: 416,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,440.46 : 767,889.19 = 301,791.65 : x
  2. Step 2: Convert to fraction form
    556,440.46/767,889.19 = 301,791.65/x
  3. Step 3: Cross multiply
    556,440.46x = 767,889.19 × 301,791.65
  4. Step 4: Simplify right side
    556,440.46x = 231,742,543,515.96
  5. Step 5: Solve for x
    x = 231,742,543,515.96/556,440.46
  6. Step 6: Final answer
    x = 416,473.21

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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.