Home / 399,023.20-596,806.80-357,205.60

Finding the Fourth Proportional to 399,023.20, 596,806.80 and 357,205.60

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Solution

The fourth proportional to 399,023.20, 596,806.80 and 357,205.60 is: 534,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,023.20 : 596,806.80 = 357,205.60 : x
  2. Step 2: Convert to fraction form
    399,023.20/596,806.80 = 357,205.60/x
  3. Step 3: Cross multiply
    399,023.20x = 596,806.80 × 357,205.60
  4. Step 4: Simplify right side
    399,023.20x = 213,182,731,078.08
  5. Step 5: Solve for x
    x = 213,182,731,078.08/399,023.20
  6. Step 6: Final answer
    x = 534,261.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.