Home / 719,455.67-992,822.80-397,158.85

Finding the Fourth Proportional to 719,455.67, 992,822.80 and 397,158.85

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Solution

The fourth proportional to 719,455.67, 992,822.80 and 397,158.85 is: 548,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,455.67 : 992,822.80 = 397,158.85 : x
  2. Step 2: Convert to fraction form
    719,455.67/992,822.80 = 397,158.85/x
  3. Step 3: Cross multiply
    719,455.67x = 992,822.80 × 397,158.85
  4. Step 4: Simplify right side
    719,455.67x = 394,308,361,501.78
  5. Step 5: Solve for x
    x = 394,308,361,501.78/719,455.67
  6. Step 6: Final answer
    x = 548,064.85

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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.