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Finding the Fourth Proportional to 353,187.44, 487,397.55 and 192,042.90

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Solution

The fourth proportional to 353,187.44, 487,397.55 and 192,042.90 is: 265,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,187.44 : 487,397.55 = 192,042.90 : x
  2. Step 2: Convert to fraction form
    353,187.44/487,397.55 = 192,042.90/x
  3. Step 3: Cross multiply
    353,187.44x = 487,397.55 × 192,042.90
  4. Step 4: Simplify right side
    353,187.44x = 93,601,239,675.06
  5. Step 5: Solve for x
    x = 93,601,239,675.06/353,187.44
  6. Step 6: Final answer
    x = 265,018.60

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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.