Home / 928,997.28-1,282,010.96-515,529.92

Finding the Fourth Proportional to 928,997.28, 1,282,010.96 and 515,529.92

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Solution

The fourth proportional to 928,997.28, 1,282,010.96 and 515,529.92 is: 711,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,997.28 : 1,282,010.96 = 515,529.92 : x
  2. Step 2: Convert to fraction form
    928,997.28/1,282,010.96 = 515,529.92/x
  3. Step 3: Cross multiply
    928,997.28x = 1,282,010.96 × 515,529.92
  4. Step 4: Simplify right side
    928,997.28x = 660,915,007,647.92
  5. Step 5: Solve for x
    x = 660,915,007,647.92/928,997.28
  6. Step 6: Final answer
    x = 711,428.36

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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.