Home / 716,395.10-988,586.24-394,053.17

Finding the Fourth Proportional to 716,395.10, 988,586.24 and 394,053.17

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Solution

The fourth proportional to 716,395.10, 988,586.24 and 394,053.17 is: 543,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,395.10 : 988,586.24 = 394,053.17 : x
  2. Step 2: Convert to fraction form
    716,395.10/988,586.24 = 394,053.17/x
  3. Step 3: Cross multiply
    716,395.10x = 988,586.24 × 394,053.17
  4. Step 4: Simplify right side
    716,395.10x = 389,555,534,777.18
  5. Step 5: Solve for x
    x = 389,555,534,777.18/716,395.10
  6. Step 6: Final answer
    x = 543,771.92

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Double scale
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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.