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Finding the Fourth Proportional to 694,615.91, 957,651.05 and 500,861.48

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Solution

The fourth proportional to 694,615.91, 957,651.05 and 500,861.48 is: 690,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,615.91 : 957,651.05 = 500,861.48 : x
  2. Step 2: Convert to fraction form
    694,615.91/957,651.05 = 500,861.48/x
  3. Step 3: Cross multiply
    694,615.91x = 957,651.05 × 500,861.48
  4. Step 4: Simplify right side
    694,615.91x = 479,650,518,690.45
  5. Step 5: Solve for x
    x = 479,650,518,690.45/694,615.91
  6. Step 6: Final answer
    x = 690,526.25

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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.