Home / 739,640,759.22-1,020,704,798.03-400,551,866.93

Finding the Fourth Proportional to 739,640,759.22, 1,020,704,798.03 and 400,551,866.93

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Solution

The fourth proportional to 739,640,759.22, 1,020,704,798.03 and 400,551,866.93 is: 552,761,874.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,640,759.22 : 1,020,704,798.03 = 400,551,866.93 : x
  2. Step 2: Convert to fraction form
    739,640,759.22/1,020,704,798.03 = 400,551,866.93/x
  3. Step 3: Cross multiply
    739,640,759.22x = 1,020,704,798.03 × 400,551,866.93
  4. Step 4: Simplify right side
    739,640,759.22x = 408,845,212,428,218,816
  5. Step 5: Solve for x
    x = 408,845,212,428,218,816/739,640,759.22
  6. Step 6: Final answer
    x = 552,761,874.37

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1.5x scale

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.