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Finding the Fourth Proportional to 562,611.32, 776,335.44 and 448,181.48

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Solution

The fourth proportional to 562,611.32, 776,335.44 and 448,181.48 is: 618,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,611.32 : 776,335.44 = 448,181.48 : x
  2. Step 2: Convert to fraction form
    562,611.32/776,335.44 = 448,181.48/x
  3. Step 3: Cross multiply
    562,611.32x = 776,335.44 × 448,181.48
  4. Step 4: Simplify right side
    562,611.32x = 347,939,166,475.65
  5. Step 5: Solve for x
    x = 347,939,166,475.65/562,611.32
  6. Step 6: Final answer
    x = 618,436.13

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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.