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Finding the Fourth Proportional to 835,998.80, 1,153,685.12 and 454,028.32

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Solution

The fourth proportional to 835,998.80, 1,153,685.12 and 454,028.32 is: 626,562.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,998.80 : 1,153,685.12 = 454,028.32 : x
  2. Step 2: Convert to fraction form
    835,998.80/1,153,685.12 = 454,028.32/x
  3. Step 3: Cross multiply
    835,998.80x = 1,153,685.12 × 454,028.32
  4. Step 4: Simplify right side
    835,998.80x = 523,805,708,804.03
  5. Step 5: Solve for x
    x = 523,805,708,804.03/835,998.80
  6. Step 6: Final answer
    x = 626,562.75

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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.