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Finding the Fourth Proportional to 353,018.39, 487,168.36 and 191,873.41

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Solution

The fourth proportional to 353,018.39, 487,168.36 and 191,873.41 is: 264,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,018.39 : 487,168.36 = 191,873.41 : x
  2. Step 2: Convert to fraction form
    353,018.39/487,168.36 = 191,873.41/x
  3. Step 3: Cross multiply
    353,018.39x = 487,168.36 × 191,873.41
  4. Step 4: Simplify right side
    353,018.39x = 93,474,652,779.70
  5. Step 5: Solve for x
    x = 93,474,652,779.70/353,018.39
  6. Step 6: Final answer
    x = 264,786.93

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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.