Home / 655,938.20-904,885.43-383,839.21

Finding the Fourth Proportional to 655,938.20, 904,885.43 and 383,839.21

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Solution

The fourth proportional to 655,938.20, 904,885.43 and 383,839.21 is: 529,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,938.20 : 904,885.43 = 383,839.21 : x
  2. Step 2: Convert to fraction form
    655,938.20/904,885.43 = 383,839.21/x
  3. Step 3: Cross multiply
    655,938.20x = 904,885.43 × 383,839.21
  4. Step 4: Simplify right side
    655,938.20x = 347,330,502,713.64
  5. Step 5: Solve for x
    x = 347,330,502,713.64/655,938.20
  6. Step 6: Final answer
    x = 529,517.11

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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.