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Finding the Fourth Proportional to 693,823.56, 957,636.54 and 451,684.50

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Solution

The fourth proportional to 693,823.56, 957,636.54 and 451,684.50 is: 623,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,823.56 : 957,636.54 = 451,684.50 : x
  2. Step 2: Convert to fraction form
    693,823.56/957,636.54 = 451,684.50/x
  3. Step 3: Cross multiply
    693,823.56x = 957,636.54 × 451,684.50
  4. Step 4: Simplify right side
    693,823.56x = 432,549,581,751.63
  5. Step 5: Solve for x
    x = 432,549,581,751.63/693,823.56
  6. Step 6: Final answer
    x = 623,428.79

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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.