Home / 719,479.94-992,890.38-397,190.24

Finding the Fourth Proportional to 719,479.94, 992,890.38 and 397,190.24

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Solution

The fourth proportional to 719,479.94, 992,890.38 and 397,190.24 is: 548,126.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,479.94 : 992,890.38 = 397,190.24 : x
  2. Step 2: Convert to fraction form
    719,479.94/992,890.38 = 397,190.24/x
  3. Step 3: Cross multiply
    719,479.94x = 992,890.38 × 397,190.24
  4. Step 4: Simplify right side
    719,479.94x = 394,366,368,325.89
  5. Step 5: Solve for x
    x = 394,366,368,325.89/719,479.94
  6. Step 6: Final answer
    x = 548,126.98

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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.