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Finding the Fourth Proportional to 456,915.93, 630,461.52 and 263,288.67

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Solution

The fourth proportional to 456,915.93, 630,461.52 and 263,288.67 is: 363,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,915.93 : 630,461.52 = 263,288.67 : x
  2. Step 2: Convert to fraction form
    456,915.93/630,461.52 = 263,288.67/x
  3. Step 3: Cross multiply
    456,915.93x = 630,461.52 × 263,288.67
  4. Step 4: Simplify right side
    456,915.93x = 165,993,375,086.98
  5. Step 5: Solve for x
    x = 165,993,375,086.98/456,915.93
  6. Step 6: Final answer
    x = 363,290.85

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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.