Home / 641,854.25-885,755.76-347,504.15

Finding the Fourth Proportional to 641,854.25, 885,755.76 and 347,504.15

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Solution

The fourth proportional to 641,854.25, 885,755.76 and 347,504.15 is: 479,554.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,854.25 : 885,755.76 = 347,504.15 : x
  2. Step 2: Convert to fraction form
    641,854.25/885,755.76 = 347,504.15/x
  3. Step 3: Cross multiply
    641,854.25x = 885,755.76 × 347,504.15
  4. Step 4: Simplify right side
    641,854.25x = 307,803,798,057.63
  5. Step 5: Solve for x
    x = 307,803,798,057.63/641,854.25
  6. Step 6: Final answer
    x = 479,554.04

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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.