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Finding the Fourth Proportional to 722,763.11, 997,519.30 and 416,779.72

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Solution

The fourth proportional to 722,763.11, 997,519.30 and 416,779.72 is: 575,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,763.11 : 997,519.30 = 416,779.72 : x
  2. Step 2: Convert to fraction form
    722,763.11/997,519.30 = 416,779.72/x
  3. Step 3: Cross multiply
    722,763.11x = 997,519.30 × 416,779.72
  4. Step 4: Simplify right side
    722,763.11x = 415,745,811,012.85
  5. Step 5: Solve for x
    x = 415,745,811,012.85/722,763.11
  6. Step 6: Final answer
    x = 575,217.25

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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.