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Finding the Fourth Proportional to 445,300.94, 614,289.42 and 281,681.75

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Solution

The fourth proportional to 445,300.94, 614,289.42 and 281,681.75 is: 388,577.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,300.94 : 614,289.42 = 281,681.75 : x
  2. Step 2: Convert to fraction form
    445,300.94/614,289.42 = 281,681.75/x
  3. Step 3: Cross multiply
    445,300.94x = 614,289.42 × 281,681.75
  4. Step 4: Simplify right side
    445,300.94x = 173,034,120,367.81
  5. Step 5: Solve for x
    x = 173,034,120,367.81/445,300.94
  6. Step 6: Final answer
    x = 388,577.93

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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.