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Finding the Fourth Proportional to 681,800.76, 940,891.59 and 375,888.33

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Solution

The fourth proportional to 681,800.76, 940,891.59 and 375,888.33 is: 518,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,800.76 : 940,891.59 = 375,888.33 : x
  2. Step 2: Convert to fraction form
    681,800.76/940,891.59 = 375,888.33/x
  3. Step 3: Cross multiply
    681,800.76x = 940,891.59 × 375,888.33
  4. Step 4: Simplify right side
    681,800.76x = 353,670,168,476.15
  5. Step 5: Solve for x
    x = 353,670,168,476.15/681,800.76
  6. Step 6: Final answer
    x = 518,729.50

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Double scale
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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.