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Finding the Fourth Proportional to 494,881.99, 742,174.89 and 258,095.50

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Solution

The fourth proportional to 494,881.99, 742,174.89 and 258,095.50 is: 387,066.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,881.99 : 742,174.89 = 258,095.50 : x
  2. Step 2: Convert to fraction form
    494,881.99/742,174.89 = 258,095.50/x
  3. Step 3: Cross multiply
    494,881.99x = 742,174.89 × 258,095.50
  4. Step 4: Simplify right side
    494,881.99x = 191,551,996,498.70
  5. Step 5: Solve for x
    x = 191,551,996,498.70/494,881.99
  6. Step 6: Final answer
    x = 387,066.01

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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.