Home / 639,623.54-882,682.16-349,235.50

Finding the Fourth Proportional to 639,623.54, 882,682.16 and 349,235.50

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Solution

The fourth proportional to 639,623.54, 882,682.16 and 349,235.50 is: 481,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,623.54 : 882,682.16 = 349,235.50 : x
  2. Step 2: Convert to fraction form
    639,623.54/882,682.16 = 349,235.50/x
  3. Step 3: Cross multiply
    639,623.54x = 882,682.16 × 349,235.50
  4. Step 4: Simplify right side
    639,623.54x = 308,263,945,155.28
  5. Step 5: Solve for x
    x = 308,263,945,155.28/639,623.54
  6. Step 6: Final answer
    x = 481,945.91

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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.