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Finding the Fourth Proportional to 680,224,512,074.30, 1,020,336,768,111.40 and 680,224,512,074.30

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Solution

The fourth proportional to 680,224,512,074.30, 1,020,336,768,111.40 and 680,224,512,074.30 is: 1,020,336,768,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,224,512,074.30 : 1,020,336,768,111.40 = 680,224,512,074.30 : x
  2. Step 2: Convert to fraction form
    680,224,512,074.30/1,020,336,768,111.40 = 680,224,512,074.30/x
  3. Step 3: Cross multiply
    680,224,512,074.30x = 1,020,336,768,111.40 × 680,224,512,074.30
  4. Step 4: Simplify right side
    680,224,512,074.30x = 694,058,080,240,045,312,180,224
  5. Step 5: Solve for x
    x = 694,058,080,240,045,312,180,224/680,224,512,074.30
  6. Step 6: Final answer
    x = 1,020,336,768,111.40

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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.