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Finding the Fourth Proportional to 299,308.60, 448,962.90 and 264,316.60

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Solution

The fourth proportional to 299,308.60, 448,962.90 and 264,316.60 is: 396,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,308.60 : 448,962.90 = 264,316.60 : x
  2. Step 2: Convert to fraction form
    299,308.60/448,962.90 = 264,316.60/x
  3. Step 3: Cross multiply
    299,308.60x = 448,962.90 × 264,316.60
  4. Step 4: Simplify right side
    299,308.60x = 118,668,347,254.14
  5. Step 5: Solve for x
    x = 118,668,347,254.14/299,308.60
  6. Step 6: Final answer
    x = 396,474.90

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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.