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Finding the Fourth Proportional to 425,072,885.40, 637,609,328.10 and 425,072,885.40

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Solution

The fourth proportional to 425,072,885.40, 637,609,328.10 and 425,072,885.40 is: 637,609,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,072,885.40 : 637,609,328.10 = 425,072,885.40 : x
  2. Step 2: Convert to fraction form
    425,072,885.40/637,609,328.10 = 425,072,885.40/x
  3. Step 3: Cross multiply
    425,072,885.40x = 637,609,328.10 × 425,072,885.40
  4. Step 4: Simplify right side
    425,072,885.40x = 271,030,436,853,422,304
  5. Step 5: Solve for x
    x = 271,030,436,853,422,304/425,072,885.40
  6. Step 6: Final answer
    x = 637,609,328.10

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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.