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Finding the Fourth Proportional to 569,639.99, 786,087.63 and 314,982.47

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Solution

The fourth proportional to 569,639.99, 786,087.63 and 314,982.47 is: 434,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,639.99 : 786,087.63 = 314,982.47 : x
  2. Step 2: Convert to fraction form
    569,639.99/786,087.63 = 314,982.47/x
  3. Step 3: Cross multiply
    569,639.99x = 786,087.63 × 314,982.47
  4. Step 4: Simplify right side
    569,639.99x = 247,603,823,333.85
  5. Step 5: Solve for x
    x = 247,603,823,333.85/569,639.99
  6. Step 6: Final answer
    x = 434,667.21

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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.