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Finding the Fourth Proportional to 639,377.39, 959,057.72 and 183,980.51

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Solution

The fourth proportional to 639,377.39, 959,057.72 and 183,980.51 is: 275,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,377.39 : 959,057.72 = 183,980.51 : x
  2. Step 2: Convert to fraction form
    639,377.39/959,057.72 = 183,980.51/x
  3. Step 3: Cross multiply
    639,377.39x = 959,057.72 × 183,980.51
  4. Step 4: Simplify right side
    639,377.39x = 176,447,924,109.70
  5. Step 5: Solve for x
    x = 176,447,924,109.70/639,377.39
  6. Step 6: Final answer
    x = 275,968.35

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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.