Home / 451,448.16-623,198.88-288,318.24

Finding the Fourth Proportional to 451,448.16, 623,198.88 and 288,318.24

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Solution

The fourth proportional to 451,448.16, 623,198.88 and 288,318.24 is: 398,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,448.16 : 623,198.88 = 288,318.24 : x
  2. Step 2: Convert to fraction form
    451,448.16/623,198.88 = 288,318.24/x
  3. Step 3: Cross multiply
    451,448.16x = 623,198.88 × 288,318.24
  4. Step 4: Simplify right side
    451,448.16x = 179,679,604,251.57
  5. Step 5: Solve for x
    x = 179,679,604,251.57/451,448.16
  6. Step 6: Final answer
    x = 398,007.17

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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.