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Finding the Fourth Proportional to 505,035.32, 696,963.57 and 275,607.41

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Solution

The fourth proportional to 505,035.32, 696,963.57 and 275,607.41 is: 380,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,035.32 : 696,963.57 = 275,607.41 : x
  2. Step 2: Convert to fraction form
    505,035.32/696,963.57 = 275,607.41/x
  3. Step 3: Cross multiply
    505,035.32x = 696,963.57 × 275,607.41
  4. Step 4: Simplify right side
    505,035.32x = 192,088,323,014.02
  5. Step 5: Solve for x
    x = 192,088,323,014.02/505,035.32
  6. Step 6: Final answer
    x = 380,346.32

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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.