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Finding the Fourth Proportional to 346,657.28, 478,383.36 and 195,745.28

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Solution

The fourth proportional to 346,657.28, 478,383.36 and 195,745.28 is: 270,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,657.28 : 478,383.36 = 195,745.28 : x
  2. Step 2: Convert to fraction form
    346,657.28/478,383.36 = 195,745.28/x
  3. Step 3: Cross multiply
    346,657.28x = 478,383.36 × 195,745.28
  4. Step 4: Simplify right side
    346,657.28x = 93,641,284,750.54
  5. Step 5: Solve for x
    x = 93,641,284,750.54/346,657.28
  6. Step 6: Final answer
    x = 270,126.40

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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.