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Finding the Fourth Proportional to 368,560.82, 508,529.77 and 207,357.05

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Solution

The fourth proportional to 368,560.82, 508,529.77 and 207,357.05 is: 286,105.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,560.82 : 508,529.77 = 207,357.05 : x
  2. Step 2: Convert to fraction form
    368,560.82/508,529.77 = 207,357.05/x
  3. Step 3: Cross multiply
    368,560.82x = 508,529.77 × 207,357.05
  4. Step 4: Simplify right side
    368,560.82x = 105,447,230,401.73
  5. Step 5: Solve for x
    x = 105,447,230,401.73/368,560.82
  6. Step 6: Final answer
    x = 286,105.38

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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.