Home / 719,421.24-992,801.51-397,131.56

Finding the Fourth Proportional to 719,421.24, 992,801.51 and 397,131.56

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Solution

The fourth proportional to 719,421.24, 992,801.51 and 397,131.56 is: 548,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,421.24 : 992,801.51 = 397,131.56 : x
  2. Step 2: Convert to fraction form
    719,421.24/992,801.51 = 397,131.56/x
  3. Step 3: Cross multiply
    719,421.24x = 992,801.51 × 397,131.56
  4. Step 4: Simplify right side
    719,421.24x = 394,272,805,486.99
  5. Step 5: Solve for x
    x = 394,272,805,486.99/719,421.24
  6. Step 6: Final answer
    x = 548,041.65

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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.