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Finding the Fourth Proportional to 890,496,369.70, 1,244,146,877.90 and 890,496,369.70

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Solution

The fourth proportional to 890,496,369.70, 1,244,146,877.90 and 890,496,369.70 is: 1,244,146,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,496,369.70 : 1,244,146,877.90 = 890,496,369.70 : x
  2. Step 2: Convert to fraction form
    890,496,369.70/1,244,146,877.90 = 890,496,369.70/x
  3. Step 3: Cross multiply
    890,496,369.70x = 1,244,146,877.90 × 890,496,369.70
  4. Step 4: Simplify right side
    890,496,369.70x = 1,107,908,278,143,539,328
  5. Step 5: Solve for x
    x = 1,107,908,278,143,539,328/890,496,369.70
  6. Step 6: Final answer
    x = 1,244,146,877.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.