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Finding the Fourth Proportional to 693,859.56, 957,686.24 and 451,720.52

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Solution

The fourth proportional to 693,859.56, 957,686.24 and 451,720.52 is: 623,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,859.56 : 957,686.24 = 451,720.52 : x
  2. Step 2: Convert to fraction form
    693,859.56/957,686.24 = 451,720.52/x
  3. Step 3: Cross multiply
    693,859.56x = 957,686.24 × 451,720.52
  4. Step 4: Simplify right side
    693,859.56x = 432,606,526,329.65
  5. Step 5: Solve for x
    x = 432,606,526,329.65/693,859.56
  6. Step 6: Final answer
    x = 623,478.51

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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.