Home / 719,434.95-992,820.41-397,145.27

Finding the Fourth Proportional to 719,434.95, 992,820.41 and 397,145.27

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Solution

The fourth proportional to 719,434.95, 992,820.41 and 397,145.27 is: 548,060.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,434.95 : 992,820.41 = 397,145.27 : x
  2. Step 2: Convert to fraction form
    719,434.95/992,820.41 = 397,145.27/x
  3. Step 3: Cross multiply
    719,434.95x = 992,820.41 × 397,145.27
  4. Step 4: Simplify right side
    719,434.95x = 394,293,929,790.96
  5. Step 5: Solve for x
    x = 394,293,929,790.96/719,434.95
  6. Step 6: Final answer
    x = 548,060.57

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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.