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Finding the Fourth Proportional to 663,552,930.40, 993,537,805.20 and 663,552,930.40

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Solution

The fourth proportional to 663,552,930.40, 993,537,805.20 and 663,552,930.40 is: 993,537,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,930.40 : 993,537,805.20 = 663,552,930.40 : x
  2. Step 2: Convert to fraction form
    663,552,930.40/993,537,805.20 = 663,552,930.40/x
  3. Step 3: Cross multiply
    663,552,930.40x = 993,537,805.20 × 663,552,930.40
  4. Step 4: Simplify right side
    663,552,930.40x = 659,264,922,103,644,416
  5. Step 5: Solve for x
    x = 659,264,922,103,644,416/663,552,930.40
  6. Step 6: Final answer
    x = 993,537,805.20

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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.