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Finding the Fourth Proportional to 263,405.41, 363,501.75 and 154,574.89

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Solution

The fourth proportional to 263,405.41, 363,501.75 and 154,574.89 is: 213,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,405.41 : 363,501.75 = 154,574.89 : x
  2. Step 2: Convert to fraction form
    263,405.41/363,501.75 = 154,574.89/x
  3. Step 3: Cross multiply
    263,405.41x = 363,501.75 × 154,574.89
  4. Step 4: Simplify right side
    263,405.41x = 56,188,243,021.06
  5. Step 5: Solve for x
    x = 56,188,243,021.06/263,405.41
  6. Step 6: Final answer
    x = 213,314.69

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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.