Home / 383,784.78-529,839.45-266,124.18

Finding the Fourth Proportional to 383,784.78, 529,839.45 and 266,124.18

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Solution

The fourth proportional to 383,784.78, 529,839.45 and 266,124.18 is: 367,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,784.78 : 529,839.45 = 266,124.18 : x
  2. Step 2: Convert to fraction form
    383,784.78/529,839.45 = 266,124.18/x
  3. Step 3: Cross multiply
    383,784.78x = 529,839.45 × 266,124.18
  4. Step 4: Simplify right side
    383,784.78x = 141,003,089,162.90
  5. Step 5: Solve for x
    x = 141,003,089,162.90/383,784.78
  6. Step 6: Final answer
    x = 367,401.46

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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.