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Finding the Fourth Proportional to 624,029,498.60, 936,044,247.90 and 442,630,970.60

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Solution

The fourth proportional to 624,029,498.60, 936,044,247.90 and 442,630,970.60 is: 663,946,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,029,498.60 : 936,044,247.90 = 442,630,970.60 : x
  2. Step 2: Convert to fraction form
    624,029,498.60/936,044,247.90 = 442,630,970.60/x
  3. Step 3: Cross multiply
    624,029,498.60x = 936,044,247.90 × 442,630,970.60
  4. Step 4: Simplify right side
    624,029,498.60x = 414,322,173,972,524,032
  5. Step 5: Solve for x
    x = 414,322,173,972,524,032/624,029,498.60
  6. Step 6: Final answer
    x = 663,946,455.90

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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.