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Finding the Fourth Proportional to 505,011.51, 696,911.85 and 275,563.62

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Solution

The fourth proportional to 505,011.51, 696,911.85 and 275,563.62 is: 380,275.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,011.51 : 696,911.85 = 275,563.62 : x
  2. Step 2: Convert to fraction form
    505,011.51/696,911.85 = 275,563.62/x
  3. Step 3: Cross multiply
    505,011.51x = 696,911.85 × 275,563.62
  4. Step 4: Simplify right side
    505,011.51x = 192,043,552,206.90
  5. Step 5: Solve for x
    x = 192,043,552,206.90/505,011.51
  6. Step 6: Final answer
    x = 380,275.59

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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.