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Finding the Fourth Proportional to 425,379,653.60, 638,069,480.40 and 364,157,650.40

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Solution

The fourth proportional to 425,379,653.60, 638,069,480.40 and 364,157,650.40 is: 546,236,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,379,653.60 : 638,069,480.40 = 364,157,650.40 : x
  2. Step 2: Convert to fraction form
    425,379,653.60/638,069,480.40 = 364,157,650.40/x
  3. Step 3: Cross multiply
    425,379,653.60x = 638,069,480.40 × 364,157,650.40
  4. Step 4: Simplify right side
    425,379,653.60x = 232,357,882,774,412,832
  5. Step 5: Solve for x
    x = 232,357,882,774,412,832/425,379,653.60
  6. Step 6: Final answer
    x = 546,236,475.60

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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.