Home / 505,719.54-697,913.01-290,859.34

Finding the Fourth Proportional to 505,719.54, 697,913.01 and 290,859.34

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Solution

The fourth proportional to 505,719.54, 697,913.01 and 290,859.34 is: 401,397.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,719.54 : 697,913.01 = 290,859.34 : x
  2. Step 2: Convert to fraction form
    505,719.54/697,913.01 = 290,859.34/x
  3. Step 3: Cross multiply
    505,719.54x = 697,913.01 × 290,859.34
  4. Step 4: Simplify right side
    505,719.54x = 202,994,517,466.01
  5. Step 5: Solve for x
    x = 202,994,517,466.01/505,719.54
  6. Step 6: Final answer
    x = 401,397.42

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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.