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Finding the Fourth Proportional to 567,336.60, 782,929.26 and 312,688.44

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Solution

The fourth proportional to 567,336.60, 782,929.26 and 312,688.44 is: 431,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,336.60 : 782,929.26 = 312,688.44 : x
  2. Step 2: Convert to fraction form
    567,336.60/782,929.26 = 312,688.44/x
  3. Step 3: Cross multiply
    567,336.60x = 782,929.26 × 312,688.44
  4. Step 4: Simplify right side
    567,336.60x = 244,812,928,939.75
  5. Step 5: Solve for x
    x = 244,812,928,939.75/567,336.60
  6. Step 6: Final answer
    x = 431,512.67

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1.5x scale

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.