Home / 641,588.39-885,613.19-369,764.81

Finding the Fourth Proportional to 641,588.39, 885,613.19 and 369,764.81

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Solution

The fourth proportional to 641,588.39, 885,613.19 and 369,764.81 is: 510,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,588.39 : 885,613.19 = 369,764.81 : x
  2. Step 2: Convert to fraction form
    641,588.39/885,613.19 = 369,764.81/x
  3. Step 3: Cross multiply
    641,588.39x = 885,613.19 × 369,764.81
  4. Step 4: Simplify right side
    641,588.39x = 327,468,586,656.95
  5. Step 5: Solve for x
    x = 327,468,586,656.95/641,588.39
  6. Step 6: Final answer
    x = 510,402.92

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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.