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Finding the Fourth Proportional to 612,036,369.70, 918,054,554.55 and 367,148,356.90

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Solution

The fourth proportional to 612,036,369.70, 918,054,554.55 and 367,148,356.90 is: 550,722,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,036,369.70 : 918,054,554.55 = 367,148,356.90 : x
  2. Step 2: Convert to fraction form
    612,036,369.70/918,054,554.55 = 367,148,356.90/x
  3. Step 3: Cross multiply
    612,036,369.70x = 918,054,554.55 × 367,148,356.90
  4. Step 4: Simplify right side
    612,036,369.70x = 337,062,221,247,593,856
  5. Step 5: Solve for x
    x = 337,062,221,247,593,856/612,036,369.70
  6. Step 6: Final answer
    x = 550,722,535.35

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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.