Home / 716,052.16-988,177.62-393,787.18

Finding the Fourth Proportional to 716,052.16, 988,177.62 and 393,787.18

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Solution

The fourth proportional to 716,052.16, 988,177.62 and 393,787.18 is: 543,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,052.16 : 988,177.62 = 393,787.18 : x
  2. Step 2: Convert to fraction form
    716,052.16/988,177.62 = 393,787.18/x
  3. Step 3: Cross multiply
    716,052.16x = 988,177.62 × 393,787.18
  4. Step 4: Simplify right side
    716,052.16x = 389,131,678,318.91
  5. Step 5: Solve for x
    x = 389,131,678,318.91/716,052.16
  6. Step 6: Final answer
    x = 543,440.41

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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.