Home / 641,368.61-885,028.39-434,215.60

Finding the Fourth Proportional to 641,368.61, 885,028.39 and 434,215.60

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Solution

The fourth proportional to 641,368.61, 885,028.39 and 434,215.60 is: 599,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,368.61 : 885,028.39 = 434,215.60 : x
  2. Step 2: Convert to fraction form
    641,368.61/885,028.39 = 434,215.60/x
  3. Step 3: Cross multiply
    641,368.61x = 885,028.39 × 434,215.60
  4. Step 4: Simplify right side
    641,368.61x = 384,293,133,380.88
  5. Step 5: Solve for x
    x = 384,293,133,380.88/641,368.61
  6. Step 6: Final answer
    x = 599,176.71

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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.