Home / 529,772.02-731,079.86-394,411.30

Finding the Fourth Proportional to 529,772.02, 731,079.86 and 394,411.30

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Solution

The fourth proportional to 529,772.02, 731,079.86 and 394,411.30 is: 544,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,772.02 : 731,079.86 = 394,411.30 : x
  2. Step 2: Convert to fraction form
    529,772.02/731,079.86 = 394,411.30/x
  3. Step 3: Cross multiply
    529,772.02x = 731,079.86 × 394,411.30
  4. Step 4: Simplify right side
    529,772.02x = 288,346,157,986.42
  5. Step 5: Solve for x
    x = 288,346,157,986.42/529,772.02
  6. Step 6: Final answer
    x = 544,283.48

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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.