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Finding the Fourth Proportional to 425,740,941.40, 638,611,412.10 and 425,740,941.40

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Solution

The fourth proportional to 425,740,941.40, 638,611,412.10 and 425,740,941.40 is: 638,611,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,740,941.40 : 638,611,412.10 = 425,740,941.40 : x
  2. Step 2: Convert to fraction form
    425,740,941.40/638,611,412.10 = 425,740,941.40/x
  3. Step 3: Cross multiply
    425,740,941.40x = 638,611,412.10 × 425,740,941.40
  4. Step 4: Simplify right side
    425,740,941.40x = 271,883,023,776,237,344
  5. Step 5: Solve for x
    x = 271,883,023,776,237,344/425,740,941.40
  6. Step 6: Final answer
    x = 638,611,412.10

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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.