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Finding the Fourth Proportional to 325,907.72, 448,911.36 and 230,248.32

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Solution

The fourth proportional to 325,907.72, 448,911.36 and 230,248.32 is: 317,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,907.72 : 448,911.36 = 230,248.32 : x
  2. Step 2: Convert to fraction form
    325,907.72/448,911.36 = 230,248.32/x
  3. Step 3: Cross multiply
    325,907.72x = 448,911.36 × 230,248.32
  4. Step 4: Simplify right side
    325,907.72x = 103,361,086,468.92
  5. Step 5: Solve for x
    x = 103,361,086,468.92/325,907.72
  6. Step 6: Final answer
    x = 317,148.32

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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.