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Finding the Fourth Proportional to 451,364.36, 623,304.16 and 290,499.56

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Solution

The fourth proportional to 451,364.36, 623,304.16 and 290,499.56 is: 401,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,364.36 : 623,304.16 = 290,499.56 : x
  2. Step 2: Convert to fraction form
    451,364.36/623,304.16 = 290,499.56/x
  3. Step 3: Cross multiply
    451,364.36x = 623,304.16 × 290,499.56
  4. Step 4: Simplify right side
    451,364.36x = 181,069,584,226.17
  5. Step 5: Solve for x
    x = 181,069,584,226.17/451,364.36
  6. Step 6: Final answer
    x = 401,160.57

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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.