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Finding the Fourth Proportional to 491,112.40, 736,668.60 and 333,648.40

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Solution

The fourth proportional to 491,112.40, 736,668.60 and 333,648.40 is: 500,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,112.40 : 736,668.60 = 333,648.40 : x
  2. Step 2: Convert to fraction form
    491,112.40/736,668.60 = 333,648.40/x
  3. Step 3: Cross multiply
    491,112.40x = 736,668.60 × 333,648.40
  4. Step 4: Simplify right side
    491,112.40x = 245,788,299,720.24
  5. Step 5: Solve for x
    x = 245,788,299,720.24/491,112.40
  6. Step 6: Final answer
    x = 500,472.60

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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.