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Finding the Fourth Proportional to 681,556.74, 940,509.92 and 375,632.18

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Solution

The fourth proportional to 681,556.74, 940,509.92 and 375,632.18 is: 518,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,556.74 : 940,509.92 = 375,632.18 : x
  2. Step 2: Convert to fraction form
    681,556.74/940,509.92 = 375,632.18/x
  3. Step 3: Cross multiply
    681,556.74x = 940,509.92 × 375,632.18
  4. Step 4: Simplify right side
    681,556.74x = 353,285,791,561.23
  5. Step 5: Solve for x
    x = 353,285,791,561.23/681,556.74
  6. Step 6: Final answer
    x = 518,351.26

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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.