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Finding the Fourth Proportional to 513,435.92, 770,532.27 and 243,564.90

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Solution

The fourth proportional to 513,435.92, 770,532.27 and 243,564.90 is: 365,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,435.92 : 770,532.27 = 243,564.90 : x
  2. Step 2: Convert to fraction form
    513,435.92/770,532.27 = 243,564.90/x
  3. Step 3: Cross multiply
    513,435.92x = 770,532.27 × 243,564.90
  4. Step 4: Simplify right side
    513,435.92x = 187,674,615,289.32
  5. Step 5: Solve for x
    x = 187,674,615,289.32/513,435.92
  6. Step 6: Final answer
    x = 365,526.86

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1.5x scale

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.