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Finding the Fourth Proportional to 482,543.20, 665,473.62 and 301,271.68

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Solution

The fourth proportional to 482,543.20, 665,473.62 and 301,271.68 is: 415,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,543.20 : 665,473.62 = 301,271.68 : x
  2. Step 2: Convert to fraction form
    482,543.20/665,473.62 = 301,271.68/x
  3. Step 3: Cross multiply
    482,543.20x = 665,473.62 × 301,271.68
  4. Step 4: Simplify right side
    482,543.20x = 200,488,355,493.08
  5. Step 5: Solve for x
    x = 200,488,355,493.08/482,543.20
  6. Step 6: Final answer
    x = 415,482.71

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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.