Home / 529,880.11-731,241.06-288,168.82

Finding the Fourth Proportional to 529,880.11, 731,241.06 and 288,168.82

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Solution

The fourth proportional to 529,880.11, 731,241.06 and 288,168.82 is: 397,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,880.11 : 731,241.06 = 288,168.82 : x
  2. Step 2: Convert to fraction form
    529,880.11/731,241.06 = 288,168.82/x
  3. Step 3: Cross multiply
    529,880.11x = 731,241.06 × 288,168.82
  4. Step 4: Simplify right side
    529,880.11x = 210,720,873,395.75
  5. Step 5: Solve for x
    x = 210,720,873,395.75/529,880.11
  6. Step 6: Final answer
    x = 397,676.51

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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.