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Finding the Fourth Proportional to 367,925.80, 551,888.70 and 339,932.20

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Solution

The fourth proportional to 367,925.80, 551,888.70 and 339,932.20 is: 509,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,925.80 : 551,888.70 = 339,932.20 : x
  2. Step 2: Convert to fraction form
    367,925.80/551,888.70 = 339,932.20/x
  3. Step 3: Cross multiply
    367,925.80x = 551,888.70 × 339,932.20
  4. Step 4: Simplify right side
    367,925.80x = 187,604,739,946.14
  5. Step 5: Solve for x
    x = 187,604,739,946.14/367,925.80
  6. Step 6: Final answer
    x = 509,898.30

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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.