Home / 398,041.23-597,096.45-128,196.53

Finding the Fourth Proportional to 398,041.23, 597,096.45 and 128,196.53

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Solution

The fourth proportional to 398,041.23, 597,096.45 and 128,196.53 is: 192,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,041.23 : 597,096.45 = 128,196.53 : x
  2. Step 2: Convert to fraction form
    398,041.23/597,096.45 = 128,196.53/x
  3. Step 3: Cross multiply
    398,041.23x = 597,096.45 × 128,196.53
  4. Step 4: Simplify right side
    398,041.23x = 76,545,689,979.84
  5. Step 5: Solve for x
    x = 76,545,689,979.84/398,041.23
  6. Step 6: Final answer
    x = 192,305.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.