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Finding the Fourth Proportional to 329,858.16, 455,205.14 and 178,955.16

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Solution

The fourth proportional to 329,858.16, 455,205.14 and 178,955.16 is: 246,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,858.16 : 455,205.14 = 178,955.16 : x
  2. Step 2: Convert to fraction form
    329,858.16/455,205.14 = 178,955.16/x
  3. Step 3: Cross multiply
    329,858.16x = 455,205.14 × 178,955.16
  4. Step 4: Simplify right side
    329,858.16x = 81,461,308,661.52
  5. Step 5: Solve for x
    x = 81,461,308,661.52/329,858.16
  6. Step 6: Final answer
    x = 246,958.60

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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.