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Finding the Fourth Proportional to 353,521.37, 487,858.58 and 192,376.38

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Solution

The fourth proportional to 353,521.37, 487,858.58 and 192,376.38 is: 265,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,521.37 : 487,858.58 = 192,376.38 : x
  2. Step 2: Convert to fraction form
    353,521.37/487,858.58 = 192,376.38/x
  3. Step 3: Cross multiply
    353,521.37x = 487,858.58 × 192,376.38
  4. Step 4: Simplify right side
    353,521.37x = 93,852,466,610.46
  5. Step 5: Solve for x
    x = 93,852,466,610.46/353,521.37
  6. Step 6: Final answer
    x = 265,478.91

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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.