Home / 451,477.77-623,015.48-257,847.17

Finding the Fourth Proportional to 451,477.77, 623,015.48 and 257,847.17

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Solution

The fourth proportional to 451,477.77, 623,015.48 and 257,847.17 is: 355,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,477.77 : 623,015.48 = 257,847.17 : x
  2. Step 2: Convert to fraction form
    451,477.77/623,015.48 = 257,847.17/x
  3. Step 3: Cross multiply
    451,477.77x = 623,015.48 × 257,847.17
  4. Step 4: Simplify right side
    451,477.77x = 160,642,773,979.88
  5. Step 5: Solve for x
    x = 160,642,773,979.88/451,477.77
  6. Step 6: Final answer
    x = 355,815.47

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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.