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Finding the Fourth Proportional to 1,583,827.85, 2,375,940.63 and 774,238.46

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Solution

The fourth proportional to 1,583,827.85, 2,375,940.63 and 774,238.46 is: 1,161,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583,827.85 : 2,375,940.63 = 774,238.46 : x
  2. Step 2: Convert to fraction form
    1,583,827.85/2,375,940.63 = 774,238.46/x
  3. Step 3: Cross multiply
    1,583,827.85x = 2,375,940.63 × 774,238.46
  4. Step 4: Simplify right side
    1,583,827.85x = 1,839,544,602,542.93
  5. Step 5: Solve for x
    x = 1,839,544,602,542.93/1,583,827.85
  6. Step 6: Final answer
    x = 1,161,454.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.