Home / 928,998.28-1,282,012.34-515,530.92

Finding the Fourth Proportional to 928,998.28, 1,282,012.34 and 515,530.92

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Solution

The fourth proportional to 928,998.28, 1,282,012.34 and 515,530.92 is: 711,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,998.28 : 1,282,012.34 = 515,530.92 : x
  2. Step 2: Convert to fraction form
    928,998.28/1,282,012.34 = 515,530.92/x
  3. Step 3: Cross multiply
    928,998.28x = 1,282,012.34 × 515,530.92
  4. Step 4: Simplify right side
    928,998.28x = 660,917,001,091.55
  5. Step 5: Solve for x
    x = 660,917,001,091.55/928,998.28
  6. Step 6: Final answer
    x = 711,429.74

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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.