Home / 515,738.04-711,739.10-283,174.28

Finding the Fourth Proportional to 515,738.04, 711,739.10 and 283,174.28

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Solution

The fourth proportional to 515,738.04, 711,739.10 and 283,174.28 is: 390,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,738.04 : 711,739.10 = 283,174.28 : x
  2. Step 2: Convert to fraction form
    515,738.04/711,739.10 = 283,174.28/x
  3. Step 3: Cross multiply
    515,738.04x = 711,739.10 × 283,174.28
  4. Step 4: Simplify right side
    515,738.04x = 201,546,207,008.61
  5. Step 5: Solve for x
    x = 201,546,207,008.61/515,738.04
  6. Step 6: Final answer
    x = 390,791.82

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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.