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Finding the Fourth Proportional to 690,923,774.70, 1,036,385,662.05 and 690,923,774.70

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Solution

The fourth proportional to 690,923,774.70, 1,036,385,662.05 and 690,923,774.70 is: 1,036,385,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,923,774.70 : 1,036,385,662.05 = 690,923,774.70 : x
  2. Step 2: Convert to fraction form
    690,923,774.70/1,036,385,662.05 = 690,923,774.70/x
  3. Step 3: Cross multiply
    690,923,774.70x = 1,036,385,662.05 × 690,923,774.70
  4. Step 4: Simplify right side
    690,923,774.70x = 716,063,493,668,544,512
  5. Step 5: Solve for x
    x = 716,063,493,668,544,512/690,923,774.70
  6. Step 6: Final answer
    x = 1,036,385,662.05

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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.