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Finding the Fourth Proportional to 260,761,457,103.80, 391,142,185,655.70 and 260,761,457,103.80

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Solution

The fourth proportional to 260,761,457,103.80, 391,142,185,655.70 and 260,761,457,103.80 is: 391,142,185,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,761,457,103.80 : 391,142,185,655.70 = 260,761,457,103.80 : x
  2. Step 2: Convert to fraction form
    260,761,457,103.80/391,142,185,655.70 = 260,761,457,103.80/x
  3. Step 3: Cross multiply
    260,761,457,103.80x = 391,142,185,655.70 × 260,761,457,103.80
  4. Step 4: Simplify right side
    260,761,457,103.80x = 101,994,806,266,345,394,536,448
  5. Step 5: Solve for x
    x = 101,994,806,266,345,394,536,448/260,761,457,103.80
  6. Step 6: Final answer
    x = 391,142,185,655.70

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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.