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Finding the Fourth Proportional to 611,953.81, 844,254.34 and 353,783.25

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Solution

The fourth proportional to 611,953.81, 844,254.34 and 353,783.25 is: 488,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,953.81 : 844,254.34 = 353,783.25 : x
  2. Step 2: Convert to fraction form
    611,953.81/844,254.34 = 353,783.25/x
  3. Step 3: Cross multiply
    611,953.81x = 844,254.34 × 353,783.25
  4. Step 4: Simplify right side
    611,953.81x = 298,683,044,231.81
  5. Step 5: Solve for x
    x = 298,683,044,231.81/611,953.81
  6. Step 6: Final answer
    x = 488,081.03

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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.