Home / 619,932.54-929,010.78-353,142.21

Finding the Fourth Proportional to 619,932.54, 929,010.78 and 353,142.21

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Solution

The fourth proportional to 619,932.54, 929,010.78 and 353,142.21 is: 529,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,932.54 : 929,010.78 = 353,142.21 : x
  2. Step 2: Convert to fraction form
    619,932.54/929,010.78 = 353,142.21/x
  3. Step 3: Cross multiply
    619,932.54x = 929,010.78 × 353,142.21
  4. Step 4: Simplify right side
    619,932.54x = 328,072,919,963.02
  5. Step 5: Solve for x
    x = 328,072,919,963.02/619,932.54
  6. Step 6: Final answer
    x = 529,207.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.