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Finding the Fourth Proportional to 514,910.40, 772,365.60 and 465,921.60

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Solution

The fourth proportional to 514,910.40, 772,365.60 and 465,921.60 is: 698,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,910.40 : 772,365.60 = 465,921.60 : x
  2. Step 2: Convert to fraction form
    514,910.40/772,365.60 = 465,921.60/x
  3. Step 3: Cross multiply
    514,910.40x = 772,365.60 × 465,921.60
  4. Step 4: Simplify right side
    514,910.40x = 359,861,816,136.96
  5. Step 5: Solve for x
    x = 359,861,816,136.96/514,910.40
  6. Step 6: Final answer
    x = 698,882.40

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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.