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Finding the Fourth Proportional to 318,601, 439,669.38 and 184,465

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Solution

The fourth proportional to 318,601, 439,669.38 and 184,465 is: 254,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,601 : 439,669.38 = 184,465 : x
  2. Step 2: Convert to fraction form
    318,601/439,669.38 = 184,465/x
  3. Step 3: Cross multiply
    318,601x = 439,669.38 × 184,465
  4. Step 4: Simplify right side
    318,601x = 81,103,612,181.70
  5. Step 5: Solve for x
    x = 81,103,612,181.70/318,601
  6. Step 6: Final answer
    x = 254,561.70

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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.