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Finding the Fourth Proportional to 505,237.92, 697,228.92 and 278,883.42

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Solution

The fourth proportional to 505,237.92, 697,228.92 and 278,883.42 is: 384,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,237.92 : 697,228.92 = 278,883.42 : x
  2. Step 2: Convert to fraction form
    505,237.92/697,228.92 = 278,883.42/x
  3. Step 3: Cross multiply
    505,237.92x = 697,228.92 × 278,883.42
  4. Step 4: Simplify right side
    505,237.92x = 194,445,585,732.51
  5. Step 5: Solve for x
    x = 194,445,585,732.51/505,237.92
  6. Step 6: Final answer
    x = 384,859.45

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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.