Home / 641,582.59-885,425.07-369,645.54

Finding the Fourth Proportional to 641,582.59, 885,425.07 and 369,645.54

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Solution

The fourth proportional to 641,582.59, 885,425.07 and 369,645.54 is: 510,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,582.59 : 885,425.07 = 369,645.54 : x
  2. Step 2: Convert to fraction form
    641,582.59/885,425.07 = 369,645.54/x
  3. Step 3: Cross multiply
    641,582.59x = 885,425.07 × 369,645.54
  4. Step 4: Simplify right side
    641,582.59x = 327,293,429,515.86
  5. Step 5: Solve for x
    x = 327,293,429,515.86/641,582.59
  6. Step 6: Final answer
    x = 510,134.53

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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.