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Finding the Fourth Proportional to 405,590.94, 607,904.25 and 189,158.94

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Solution

The fourth proportional to 405,590.94, 607,904.25 and 189,158.94 is: 283,513.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,590.94 : 607,904.25 = 189,158.94 : x
  2. Step 2: Convert to fraction form
    405,590.94/607,904.25 = 189,158.94/x
  3. Step 3: Cross multiply
    405,590.94x = 607,904.25 × 189,158.94
  4. Step 4: Simplify right side
    405,590.94x = 114,990,523,551.50
  5. Step 5: Solve for x
    x = 114,990,523,551.50/405,590.94
  6. Step 6: Final answer
    x = 283,513.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.