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Finding the Fourth Proportional to 438,907.32, 605,741.40 and 247,933.01

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Solution

The fourth proportional to 438,907.32, 605,741.40 and 247,933.01 is: 342,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,907.32 : 605,741.40 = 247,933.01 : x
  2. Step 2: Convert to fraction form
    438,907.32/605,741.40 = 247,933.01/x
  3. Step 3: Cross multiply
    438,907.32x = 605,741.40 × 247,933.01
  4. Step 4: Simplify right side
    438,907.32x = 150,183,285,554.91
  5. Step 5: Solve for x
    x = 150,183,285,554.91/438,907.32
  6. Step 6: Final answer
    x = 342,175.39

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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.