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Finding the Fourth Proportional to 567,263.55, 782,823.83 and 309,140.54

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Solution

The fourth proportional to 567,263.55, 782,823.83 and 309,140.54 is: 426,614.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,263.55 : 782,823.83 = 309,140.54 : x
  2. Step 2: Convert to fraction form
    567,263.55/782,823.83 = 309,140.54/x
  3. Step 3: Cross multiply
    567,263.55x = 782,823.83 × 309,140.54
  4. Step 4: Simplify right side
    567,263.55x = 242,002,576,071.25
  5. Step 5: Solve for x
    x = 242,002,576,071.25/567,263.55
  6. Step 6: Final answer
    x = 426,614.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.