Home / 622,394.24-858,909.20-354,139.52

Finding the Fourth Proportional to 622,394.24, 858,909.20 and 354,139.52

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Solution

The fourth proportional to 622,394.24, 858,909.20 and 354,139.52 is: 488,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,394.24 : 858,909.20 = 354,139.52 : x
  2. Step 2: Convert to fraction form
    622,394.24/858,909.20 = 354,139.52/x
  3. Step 3: Cross multiply
    622,394.24x = 858,909.20 × 354,139.52
  4. Step 4: Simplify right side
    622,394.24x = 304,173,691,811.58
  5. Step 5: Solve for x
    x = 304,173,691,811.58/622,394.24
  6. Step 6: Final answer
    x = 488,715.47

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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.