Home / 716,051.16-988,176.24-393,786.18

Finding the Fourth Proportional to 716,051.16, 988,176.24 and 393,786.18

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Solution

The fourth proportional to 716,051.16, 988,176.24 and 393,786.18 is: 543,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,051.16 : 988,176.24 = 393,786.18 : x
  2. Step 2: Convert to fraction form
    716,051.16/988,176.24 = 393,786.18/x
  3. Step 3: Cross multiply
    716,051.16x = 988,176.24 × 393,786.18
  4. Step 4: Simplify right side
    716,051.16x = 389,130,146,716.36
  5. Step 5: Solve for x
    x = 389,130,146,716.36/716,051.16
  6. Step 6: Final answer
    x = 543,439.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.