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Finding the Fourth Proportional to 959,365,559.80, 1,439,048,339.70 and 959,365,559.80

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Solution

The fourth proportional to 959,365,559.80, 1,439,048,339.70 and 959,365,559.80 is: 1,439,048,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,365,559.80 : 1,439,048,339.70 = 959,365,559.80 : x
  2. Step 2: Convert to fraction form
    959,365,559.80/1,439,048,339.70 = 959,365,559.80/x
  3. Step 3: Cross multiply
    959,365,559.80x = 1,439,048,339.70 × 959,365,559.80
  4. Step 4: Simplify right side
    959,365,559.80x = 1,380,573,415,995,550,976
  5. Step 5: Solve for x
    x = 1,380,573,415,995,550,976/959,365,559.80
  6. Step 6: Final answer
    x = 1,439,048,339.70

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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.