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Finding the Fourth Proportional to 318,653.94, 477,816.24 and 93,985.78

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Solution

The fourth proportional to 318,653.94, 477,816.24 and 93,985.78 is: 140,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,653.94 : 477,816.24 = 93,985.78 : x
  2. Step 2: Convert to fraction form
    318,653.94/477,816.24 = 93,985.78/x
  3. Step 3: Cross multiply
    318,653.94x = 477,816.24 × 93,985.78
  4. Step 4: Simplify right side
    318,653.94x = 44,907,932,013.07
  5. Step 5: Solve for x
    x = 44,907,932,013.07/318,653.94
  6. Step 6: Final answer
    x = 140,930.10

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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.