Home / 683,605.01-942,042.75-492,257.09

Finding the Fourth Proportional to 683,605.01, 942,042.75 and 492,257.09

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Solution

The fourth proportional to 683,605.01, 942,042.75 and 492,257.09 is: 678,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,605.01 : 942,042.75 = 492,257.09 : x
  2. Step 2: Convert to fraction form
    683,605.01/942,042.75 = 492,257.09/x
  3. Step 3: Cross multiply
    683,605.01x = 942,042.75 × 492,257.09
  4. Step 4: Simplify right side
    683,605.01x = 463,727,222,770.60
  5. Step 5: Solve for x
    x = 463,727,222,770.60/683,605.01
  6. Step 6: Final answer
    x = 678,355.51

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Half scale
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Double scale
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Similar ratio
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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.