Home / 641,743.22-885,327.57-386,952.86

Finding the Fourth Proportional to 641,743.22, 885,327.57 and 386,952.86

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Solution

The fourth proportional to 641,743.22, 885,327.57 and 386,952.86 is: 533,827.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,743.22 : 885,327.57 = 386,952.86 : x
  2. Step 2: Convert to fraction form
    641,743.22/885,327.57 = 386,952.86/x
  3. Step 3: Cross multiply
    641,743.22x = 885,327.57 × 386,952.86
  4. Step 4: Simplify right side
    641,743.22x = 342,580,030,821.71
  5. Step 5: Solve for x
    x = 342,580,030,821.71/641,743.22
  6. Step 6: Final answer
    x = 533,827.27

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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.