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Finding the Fourth Proportional to 405,454.99, 607,592 and 194,846.89

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Solution

The fourth proportional to 405,454.99, 607,592 and 194,846.89 is: 291,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,454.99 : 607,592 = 194,846.89 : x
  2. Step 2: Convert to fraction form
    405,454.99/607,592 = 194,846.89/x
  3. Step 3: Cross multiply
    405,454.99x = 607,592 × 194,846.89
  4. Step 4: Simplify right side
    405,454.99x = 118,387,411,588.88
  5. Step 5: Solve for x
    x = 118,387,411,588.88/405,454.99
  6. Step 6: Final answer
    x = 291,986.57

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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.