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Finding the Fourth Proportional to 663,552,393.40, 993,536,999.70 and 663,552,393.40

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Solution

The fourth proportional to 663,552,393.40, 993,536,999.70 and 663,552,393.40 is: 993,536,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,393.40 : 993,536,999.70 = 663,552,393.40 : x
  2. Step 2: Convert to fraction form
    663,552,393.40/993,536,999.70 = 663,552,393.40/x
  3. Step 3: Cross multiply
    663,552,393.40x = 993,536,999.70 × 663,552,393.40
  4. Step 4: Simplify right side
    663,552,393.40x = 659,263,854,082,390,144
  5. Step 5: Solve for x
    x = 659,263,854,082,390,144/663,552,393.40
  6. Step 6: Final answer
    x = 993,536,999.70

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1.5x scale

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.