Home / 719,468.91-992,868.57-397,179.45

Finding the Fourth Proportional to 719,468.91, 992,868.57 and 397,179.45

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Solution

The fourth proportional to 719,468.91, 992,868.57 and 397,179.45 is: 548,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,468.91 : 992,868.57 = 397,179.45 : x
  2. Step 2: Convert to fraction form
    719,468.91/992,868.57 = 397,179.45/x
  3. Step 3: Cross multiply
    719,468.91x = 992,868.57 × 397,179.45
  4. Step 4: Simplify right side
    719,468.91x = 394,346,992,554.89
  5. Step 5: Solve for x
    x = 394,346,992,554.89/719,468.91
  6. Step 6: Final answer
    x = 548,108.45

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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.