Home / 739,151.19-1,020,028.55-399,619.44

Finding the Fourth Proportional to 739,151.19, 1,020,028.55 and 399,619.44

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Solution

The fourth proportional to 739,151.19, 1,020,028.55 and 399,619.44 is: 551,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,151.19 : 1,020,028.55 = 399,619.44 : x
  2. Step 2: Convert to fraction form
    739,151.19/1,020,028.55 = 399,619.44/x
  3. Step 3: Cross multiply
    739,151.19x = 1,020,028.55 × 399,619.44
  4. Step 4: Simplify right side
    739,151.19x = 407,623,235,936.92
  5. Step 5: Solve for x
    x = 407,623,235,936.92/739,151.19
  6. Step 6: Final answer
    x = 551,474.77

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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.