Home / 914,998.68-1,262,786.40-507,188.88

Finding the Fourth Proportional to 914,998.68, 1,262,786.40 and 507,188.88

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Solution

The fourth proportional to 914,998.68, 1,262,786.40 and 507,188.88 is: 699,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,998.68 : 1,262,786.40 = 507,188.88 : x
  2. Step 2: Convert to fraction form
    914,998.68/1,262,786.40 = 507,188.88/x
  3. Step 3: Cross multiply
    914,998.68x = 1,262,786.40 × 507,188.88
  4. Step 4: Simplify right side
    914,998.68x = 640,471,219,895.23
  5. Step 5: Solve for x
    x = 640,471,219,895.23/914,998.68
  6. Step 6: Final answer
    x = 699,969.56

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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.