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Finding the Fourth Proportional to 435,657,617.55, 611,451,214.65 and 435,657,617.55

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Solution

The fourth proportional to 435,657,617.55, 611,451,214.65 and 435,657,617.55 is: 611,451,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,657,617.55 : 611,451,214.65 = 435,657,617.55 : x
  2. Step 2: Convert to fraction form
    435,657,617.55/611,451,214.65 = 435,657,617.55/x
  3. Step 3: Cross multiply
    435,657,617.55x = 611,451,214.65 × 435,657,617.55
  4. Step 4: Simplify right side
    435,657,617.55x = 266,383,379,422,472,640
  5. Step 5: Solve for x
    x = 266,383,379,422,472,640/435,657,617.55
  6. Step 6: Final answer
    x = 611,451,214.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.