Home / 644,591.48-882,659.43-619,181.78

Finding the Fourth Proportional to 644,591.48, 882,659.43 and 619,181.78

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Solution

The fourth proportional to 644,591.48, 882,659.43 and 619,181.78 is: 847,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,591.48 : 882,659.43 = 619,181.78 : x
  2. Step 2: Convert to fraction form
    644,591.48/882,659.43 = 619,181.78/x
  3. Step 3: Cross multiply
    644,591.48x = 882,659.43 × 619,181.78
  4. Step 4: Simplify right side
    644,591.48x = 546,526,632,587.89
  5. Step 5: Solve for x
    x = 546,526,632,587.89/644,591.48
  6. Step 6: Final answer
    x = 847,865.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.