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Finding the Fourth Proportional to 984,660, 1,358,830.80 and 531,951

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Solution

The fourth proportional to 984,660, 1,358,830.80 and 531,951 is: 734,092.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,660 : 1,358,830.80 = 531,951 : x
  2. Step 2: Convert to fraction form
    984,660/1,358,830.80 = 531,951/x
  3. Step 3: Cross multiply
    984,660x = 1,358,830.80 × 531,951
  4. Step 4: Simplify right side
    984,660x = 722,831,402,890.80
  5. Step 5: Solve for x
    x = 722,831,402,890.80/984,660
  6. Step 6: Final answer
    x = 734,092.38

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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.