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Finding the Fourth Proportional to 353,169.90, 487,368.78 and 192,023.52

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Solution

The fourth proportional to 353,169.90, 487,368.78 and 192,023.52 is: 264,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,169.90 : 487,368.78 = 192,023.52 : x
  2. Step 2: Convert to fraction form
    353,169.90/487,368.78 = 192,023.52/x
  3. Step 3: Cross multiply
    353,169.90x = 487,368.78 × 192,023.52
  4. Step 4: Simplify right side
    353,169.90x = 93,586,268,673.71
  5. Step 5: Solve for x
    x = 93,586,268,673.71/353,169.90
  6. Step 6: Final answer
    x = 264,989.37

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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.