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Finding the Fourth Proportional to 1,281,745,219.80, 1,922,617,829.70 and 850,923,715.80

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Solution

The fourth proportional to 1,281,745,219.80, 1,922,617,829.70 and 850,923,715.80 is: 1,276,385,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,745,219.80 : 1,922,617,829.70 = 850,923,715.80 : x
  2. Step 2: Convert to fraction form
    1,281,745,219.80/1,922,617,829.70 = 850,923,715.80/x
  3. Step 3: Cross multiply
    1,281,745,219.80x = 1,922,617,829.70 × 850,923,715.80
  4. Step 4: Simplify right side
    1,281,745,219.80x = 1,636,001,107,711,655,424
  5. Step 5: Solve for x
    x = 1,636,001,107,711,655,424/1,281,745,219.80
  6. Step 6: Final answer
    x = 1,276,385,573.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.