Home / 957,185.81-1,320,899.40-521,606.96

Finding the Fourth Proportional to 957,185.81, 1,320,899.40 and 521,606.96

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Solution

The fourth proportional to 957,185.81, 1,320,899.40 and 521,606.96 is: 719,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,185.81 : 1,320,899.40 = 521,606.96 : x
  2. Step 2: Convert to fraction form
    957,185.81/1,320,899.40 = 521,606.96/x
  3. Step 3: Cross multiply
    957,185.81x = 1,320,899.40 × 521,606.96
  4. Step 4: Simplify right side
    957,185.81x = 688,990,313,895.33
  5. Step 5: Solve for x
    x = 688,990,313,895.33/957,185.81
  6. Step 6: Final answer
    x = 719,808.33

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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.