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Finding the Fourth Proportional to 505,235.76, 696,919.32 and 301,150.68

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Solution

The fourth proportional to 505,235.76, 696,919.32 and 301,150.68 is: 415,405.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,235.76 : 696,919.32 = 301,150.68 : x
  2. Step 2: Convert to fraction form
    505,235.76/696,919.32 = 301,150.68/x
  3. Step 3: Cross multiply
    505,235.76x = 696,919.32 × 301,150.68
  4. Step 4: Simplify right side
    505,235.76x = 209,877,727,123.14
  5. Step 5: Solve for x
    x = 209,877,727,123.14/505,235.76
  6. Step 6: Final answer
    x = 415,405.53

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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.