Home / 1,120,190.02-1,545,954.71-636,907.30

Finding the Fourth Proportional to 1,120,190.02, 1,545,954.71 and 636,907.30

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Solution

The fourth proportional to 1,120,190.02, 1,545,954.71 and 636,907.30 is: 878,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,190.02 : 1,545,954.71 = 636,907.30 : x
  2. Step 2: Convert to fraction form
    1,120,190.02/1,545,954.71 = 636,907.30/x
  3. Step 3: Cross multiply
    1,120,190.02x = 1,545,954.71 × 636,907.30
  4. Step 4: Simplify right side
    1,120,190.02x = 984,629,840,268.38
  5. Step 5: Solve for x
    x = 984,629,840,268.38/1,120,190.02
  6. Step 6: Final answer
    x = 878,984.66

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Double scale
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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.