Home / 619,433.30-854,736.12-347,490.79

Finding the Fourth Proportional to 619,433.30, 854,736.12 and 347,490.79

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Solution

The fourth proportional to 619,433.30, 854,736.12 and 347,490.79 is: 479,491.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,433.30 : 854,736.12 = 347,490.79 : x
  2. Step 2: Convert to fraction form
    619,433.30/854,736.12 = 347,490.79/x
  3. Step 3: Cross multiply
    619,433.30x = 854,736.12 × 347,490.79
  4. Step 4: Simplify right side
    619,433.30x = 297,012,927,443.50
  5. Step 5: Solve for x
    x = 297,012,927,443.50/619,433.30
  6. Step 6: Final answer
    x = 479,491.38

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Double scale
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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.