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Finding the Fourth Proportional to 624,055,234.40, 935,411,005.20 and 235,728,015.20

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Solution

The fourth proportional to 624,055,234.40, 935,411,005.20 and 235,728,015.20 is: 353,338,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,055,234.40 : 935,411,005.20 = 235,728,015.20 : x
  2. Step 2: Convert to fraction form
    624,055,234.40/935,411,005.20 = 235,728,015.20/x
  3. Step 3: Cross multiply
    624,055,234.40x = 935,411,005.20 × 235,728,015.20
  4. Step 4: Simplify right side
    624,055,234.40x = 220,502,579,652,032,864
  5. Step 5: Solve for x
    x = 220,502,579,652,032,864/624,055,234.40
  6. Step 6: Final answer
    x = 353,338,242.35

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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.