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Finding the Fourth Proportional to 465,573.51, 698,249.55 and 128,606.70

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Solution

The fourth proportional to 465,573.51, 698,249.55 and 128,606.70 is: 192,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,573.51 : 698,249.55 = 128,606.70 : x
  2. Step 2: Convert to fraction form
    465,573.51/698,249.55 = 128,606.70/x
  3. Step 3: Cross multiply
    465,573.51x = 698,249.55 × 128,606.70
  4. Step 4: Simplify right side
    465,573.51x = 89,799,570,401.99
  5. Step 5: Solve for x
    x = 89,799,570,401.99/465,573.51
  6. Step 6: Final answer
    x = 192,879.47

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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.