Home / 529,796.46-731,128.27-288,080.51

Finding the Fourth Proportional to 529,796.46, 731,128.27 and 288,080.51

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Solution

The fourth proportional to 529,796.46, 731,128.27 and 288,080.51 is: 397,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,796.46 : 731,128.27 = 288,080.51 : x
  2. Step 2: Convert to fraction form
    529,796.46/731,128.27 = 288,080.51/x
  3. Step 3: Cross multiply
    529,796.46x = 731,128.27 × 288,080.51
  4. Step 4: Simplify right side
    529,796.46x = 210,623,806,004.64
  5. Step 5: Solve for x
    x = 210,623,806,004.64/529,796.46
  6. Step 6: Final answer
    x = 397,556.08

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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.