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Finding the Fourth Proportional to 630,183.26, 869,503.32 and 358,229.66

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Solution

The fourth proportional to 630,183.26, 869,503.32 and 358,229.66 is: 494,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,183.26 : 869,503.32 = 358,229.66 : x
  2. Step 2: Convert to fraction form
    630,183.26/869,503.32 = 358,229.66/x
  3. Step 3: Cross multiply
    630,183.26x = 869,503.32 × 358,229.66
  4. Step 4: Simplify right side
    630,183.26x = 311,481,878,692.47
  5. Step 5: Solve for x
    x = 311,481,878,692.47/630,183.26
  6. Step 6: Final answer
    x = 494,271.90

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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.