Home / 719,432.89-992,824.37-397,136.05

Finding the Fourth Proportional to 719,432.89, 992,824.37 and 397,136.05

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Solution

The fourth proportional to 719,432.89, 992,824.37 and 397,136.05 is: 548,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,432.89 : 992,824.37 = 397,136.05 : x
  2. Step 2: Convert to fraction form
    719,432.89/992,824.37 = 397,136.05/x
  3. Step 3: Cross multiply
    719,432.89x = 992,824.37 × 397,136.05
  4. Step 4: Simplify right side
    719,432.89x = 394,286,348,645.54
  5. Step 5: Solve for x
    x = 394,286,348,645.54/719,432.89
  6. Step 6: Final answer
    x = 548,051.60

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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.