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Finding the Fourth Proportional to 1,303,608.70, 1,955,413.05 and 736,738.30

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Solution

The fourth proportional to 1,303,608.70, 1,955,413.05 and 736,738.30 is: 1,105,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,608.70 : 1,955,413.05 = 736,738.30 : x
  2. Step 2: Convert to fraction form
    1,303,608.70/1,955,413.05 = 736,738.30/x
  3. Step 3: Cross multiply
    1,303,608.70x = 1,955,413.05 × 736,738.30
  4. Step 4: Simplify right side
    1,303,608.70x = 1,440,627,686,254.82
  5. Step 5: Solve for x
    x = 1,440,627,686,254.82/1,303,608.70
  6. Step 6: Final answer
    x = 1,105,107.45

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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.