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Finding the Fourth Proportional to 681,784.67, 940,870.10 and 375,872.00

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Solution

The fourth proportional to 681,784.67, 940,870.10 and 375,872.00 is: 518,707.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,784.67 : 940,870.10 = 375,872.00 : x
  2. Step 2: Convert to fraction form
    681,784.67/940,870.10 = 375,872.00/x
  3. Step 3: Cross multiply
    681,784.67x = 940,870.10 × 375,872.00
  4. Step 4: Simplify right side
    681,784.67x = 353,646,725,905.78
  5. Step 5: Solve for x
    x = 353,646,725,905.78/681,784.67
  6. Step 6: Final answer
    x = 518,707.36

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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.