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Finding the Fourth Proportional to 455,575.68, 683,381.58 and 171,237.60

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Solution

The fourth proportional to 455,575.68, 683,381.58 and 171,237.60 is: 256,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,575.68 : 683,381.58 = 171,237.60 : x
  2. Step 2: Convert to fraction form
    455,575.68/683,381.58 = 171,237.60/x
  3. Step 3: Cross multiply
    455,575.68x = 683,381.58 × 171,237.60
  4. Step 4: Simplify right side
    455,575.68x = 117,020,621,643.41
  5. Step 5: Solve for x
    x = 117,020,621,643.41/455,575.68
  6. Step 6: Final answer
    x = 256,863.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.