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Finding the Fourth Proportional to 326,428,000.10, 457,603,861.90 and 326,428,000.10

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Solution

The fourth proportional to 326,428,000.10, 457,603,861.90 and 326,428,000.10 is: 457,603,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,428,000.10 : 457,603,861.90 = 326,428,000.10 : x
  2. Step 2: Convert to fraction form
    326,428,000.10/457,603,861.90 = 326,428,000.10/x
  3. Step 3: Cross multiply
    326,428,000.10x = 457,603,861.90 × 326,428,000.10
  4. Step 4: Simplify right side
    326,428,000.10x = 149,374,713,478,053,600
  5. Step 5: Solve for x
    x = 149,374,713,478,053,600/326,428,000.10
  6. Step 6: Final answer
    x = 457,603,861.90

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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.