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Finding the Fourth Proportional to 403,500.69, 556,809.62 and 231,409.76

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Solution

The fourth proportional to 403,500.69, 556,809.62 and 231,409.76 is: 319,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,500.69 : 556,809.62 = 231,409.76 : x
  2. Step 2: Convert to fraction form
    403,500.69/556,809.62 = 231,409.76/x
  3. Step 3: Cross multiply
    403,500.69x = 556,809.62 × 231,409.76
  4. Step 4: Simplify right side
    403,500.69x = 128,851,177,745.84
  5. Step 5: Solve for x
    x = 128,851,177,745.84/403,500.69
  6. Step 6: Final answer
    x = 319,333.23

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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.