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Finding the Fourth Proportional to 885,925,961.10, 1,328,888,941.65 and 885,925,961.10

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Solution

The fourth proportional to 885,925,961.10, 1,328,888,941.65 and 885,925,961.10 is: 1,328,888,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,925,961.10 : 1,328,888,941.65 = 885,925,961.10 : x
  2. Step 2: Convert to fraction form
    885,925,961.10/1,328,888,941.65 = 885,925,961.10/x
  3. Step 3: Cross multiply
    885,925,961.10x = 1,328,888,941.65 × 885,925,961.10
  4. Step 4: Simplify right side
    885,925,961.10x = 1,177,297,212,826,438,144
  5. Step 5: Solve for x
    x = 1,177,297,212,826,438,144/885,925,961.10
  6. Step 6: Final answer
    x = 1,328,888,941.65

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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.