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Finding the Fourth Proportional to 885,736,590.20, 1,328,604,885.30 and 880,634,756.60

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Solution

The fourth proportional to 885,736,590.20, 1,328,604,885.30 and 880,634,756.60 is: 1,320,952,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,590.20 : 1,328,604,885.30 = 880,634,756.60 : x
  2. Step 2: Convert to fraction form
    885,736,590.20/1,328,604,885.30 = 880,634,756.60/x
  3. Step 3: Cross multiply
    885,736,590.20x = 1,328,604,885.30 × 880,634,756.60
  4. Step 4: Simplify right side
    885,736,590.20x = 1,170,015,639,783,736,320
  5. Step 5: Solve for x
    x = 1,170,015,639,783,736,320/885,736,590.20
  6. Step 6: Final answer
    x = 1,320,952,134.90

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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.