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Finding the Fourth Proportional to 620,401.85, 931,065.99 and 460,846.23

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Solution

The fourth proportional to 620,401.85, 931,065.99 and 460,846.23 is: 691,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,401.85 : 931,065.99 = 460,846.23 : x
  2. Step 2: Convert to fraction form
    620,401.85/931,065.99 = 460,846.23/x
  3. Step 3: Cross multiply
    620,401.85x = 931,065.99 × 460,846.23
  4. Step 4: Simplify right side
    620,401.85x = 429,078,251,372.72
  5. Step 5: Solve for x
    x = 429,078,251,372.72/620,401.85
  6. Step 6: Final answer
    x = 691,613.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.