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Finding the Fourth Proportional to 425,080,116.40, 637,620,174.60 and 425,080,116.40

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Solution

The fourth proportional to 425,080,116.40, 637,620,174.60 and 425,080,116.40 is: 637,620,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,080,116.40 : 637,620,174.60 = 425,080,116.40 : x
  2. Step 2: Convert to fraction form
    425,080,116.40/637,620,174.60 = 425,080,116.40/x
  3. Step 3: Cross multiply
    425,080,116.40x = 637,620,174.60 × 425,080,116.40
  4. Step 4: Simplify right side
    425,080,116.40x = 271,039,658,037,956,320
  5. Step 5: Solve for x
    x = 271,039,658,037,956,320/425,080,116.40
  6. Step 6: Final answer
    x = 637,620,174.60

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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.