Home / 639,954.64-883,131.34-349,566.07

Finding the Fourth Proportional to 639,954.64, 883,131.34 and 349,566.07

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Solution

The fourth proportional to 639,954.64, 883,131.34 and 349,566.07 is: 482,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,954.64 : 883,131.34 = 349,566.07 : x
  2. Step 2: Convert to fraction form
    639,954.64/883,131.34 = 349,566.07/x
  3. Step 3: Cross multiply
    639,954.64x = 883,131.34 × 349,566.07
  4. Step 4: Simplify right side
    639,954.64x = 308,712,751,817.63
  5. Step 5: Solve for x
    x = 308,712,751,817.63/639,954.64
  6. Step 6: Final answer
    x = 482,397.86

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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.