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Finding the Fourth Proportional to 556,817.55, 768,408.69 and 302,168.71

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Solution

The fourth proportional to 556,817.55, 768,408.69 and 302,168.71 is: 416,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,817.55 : 768,408.69 = 302,168.71 : x
  2. Step 2: Convert to fraction form
    556,817.55/768,408.69 = 302,168.71/x
  3. Step 3: Cross multiply
    556,817.55x = 768,408.69 × 302,168.71
  4. Step 4: Simplify right side
    556,817.55x = 232,189,062,610.09
  5. Step 5: Solve for x
    x = 232,189,062,610.09/556,817.55
  6. Step 6: Final answer
    x = 416,993.08

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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.