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Finding the Fourth Proportional to 346,757.76, 478,509.12 and 195,876.48

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Solution

The fourth proportional to 346,757.76, 478,509.12 and 195,876.48 is: 270,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,757.76 : 478,509.12 = 195,876.48 : x
  2. Step 2: Convert to fraction form
    346,757.76/478,509.12 = 195,876.48/x
  3. Step 3: Cross multiply
    346,757.76x = 478,509.12 × 195,876.48
  4. Step 4: Simplify right side
    346,757.76x = 93,728,682,073.50
  5. Step 5: Solve for x
    x = 93,728,682,073.50/346,757.76
  6. Step 6: Final answer
    x = 270,300.17

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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.