Home / 825,280.82-1,139,090.13-503,168.54

Finding the Fourth Proportional to 825,280.82, 1,139,090.13 and 503,168.54

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Solution

The fourth proportional to 825,280.82, 1,139,090.13 and 503,168.54 is: 694,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,280.82 : 1,139,090.13 = 503,168.54 : x
  2. Step 2: Convert to fraction form
    825,280.82/1,139,090.13 = 503,168.54/x
  3. Step 3: Cross multiply
    825,280.82x = 1,139,090.13 × 503,168.54
  4. Step 4: Simplify right side
    825,280.82x = 573,154,317,640.51
  5. Step 5: Solve for x
    x = 573,154,317,640.51/825,280.82
  6. Step 6: Final answer
    x = 694,496.11

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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.