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Finding the Fourth Proportional to 554,143.68, 829,854.72 and 353,872.80

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Solution

The fourth proportional to 554,143.68, 829,854.72 and 353,872.80 is: 529,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,143.68 : 829,854.72 = 353,872.80 : x
  2. Step 2: Convert to fraction form
    554,143.68/829,854.72 = 353,872.80/x
  3. Step 3: Cross multiply
    554,143.68x = 829,854.72 × 353,872.80
  4. Step 4: Simplify right side
    554,143.68x = 293,663,013,359.62
  5. Step 5: Solve for x
    x = 293,663,013,359.62/554,143.68
  6. Step 6: Final answer
    x = 529,940.20

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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.