Home / 716,982.75-989,502.08-394,758.27

Finding the Fourth Proportional to 716,982.75, 989,502.08 and 394,758.27

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Solution

The fourth proportional to 716,982.75, 989,502.08 and 394,758.27 is: 544,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,982.75 : 989,502.08 = 394,758.27 : x
  2. Step 2: Convert to fraction form
    716,982.75/989,502.08 = 394,758.27/x
  3. Step 3: Cross multiply
    716,982.75x = 989,502.08 × 394,758.27
  4. Step 4: Simplify right side
    716,982.75x = 390,614,127,288.41
  5. Step 5: Solve for x
    x = 390,614,127,288.41/716,982.75
  6. Step 6: Final answer
    x = 544,802.68

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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.