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Finding the Fourth Proportional to 863,995.20, 1,295,992.80 and 801,009.60

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Solution

The fourth proportional to 863,995.20, 1,295,992.80 and 801,009.60 is: 1,201,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,995.20 : 1,295,992.80 = 801,009.60 : x
  2. Step 2: Convert to fraction form
    863,995.20/1,295,992.80 = 801,009.60/x
  3. Step 3: Cross multiply
    863,995.20x = 1,295,992.80 × 801,009.60
  4. Step 4: Simplify right side
    863,995.20x = 1,038,102,674,330.88
  5. Step 5: Solve for x
    x = 1,038,102,674,330.88/863,995.20
  6. Step 6: Final answer
    x = 1,201,514.40

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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.