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Finding the Fourth Proportional to 554,897.43, 831,846.51 and 199,661.63

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Solution

The fourth proportional to 554,897.43, 831,846.51 and 199,661.63 is: 299,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,897.43 : 831,846.51 = 199,661.63 : x
  2. Step 2: Convert to fraction form
    554,897.43/831,846.51 = 199,661.63/x
  3. Step 3: Cross multiply
    554,897.43x = 831,846.51 × 199,661.63
  4. Step 4: Simplify right side
    554,897.43x = 166,087,825,937.18
  5. Step 5: Solve for x
    x = 166,087,825,937.18/554,897.43
  6. Step 6: Final answer
    x = 299,312.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.