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Finding the Fourth Proportional to 437,346.40, 656,019.60 and 295,628.80

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Solution

The fourth proportional to 437,346.40, 656,019.60 and 295,628.80 is: 443,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,346.40 : 656,019.60 = 295,628.80 : x
  2. Step 2: Convert to fraction form
    437,346.40/656,019.60 = 295,628.80/x
  3. Step 3: Cross multiply
    437,346.40x = 656,019.60 × 295,628.80
  4. Step 4: Simplify right side
    437,346.40x = 193,938,287,124.48
  5. Step 5: Solve for x
    x = 193,938,287,124.48/437,346.40
  6. Step 6: Final answer
    x = 443,443.20

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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.