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Finding the Fourth Proportional to 574,133.90, 859,645.65 and 449,717.90

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Solution

The fourth proportional to 574,133.90, 859,645.65 and 449,717.90 is: 673,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,133.90 : 859,645.65 = 449,717.90 : x
  2. Step 2: Convert to fraction form
    574,133.90/859,645.65 = 449,717.90/x
  3. Step 3: Cross multiply
    574,133.90x = 859,645.65 × 449,717.90
  4. Step 4: Simplify right side
    574,133.90x = 386,598,036,462.14
  5. Step 5: Solve for x
    x = 386,598,036,462.14/574,133.90
  6. Step 6: Final answer
    x = 673,358.67

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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.