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Finding the Fourth Proportional to 451,051,504.40, 630,111,617.20 and 451,051,504.40

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Solution

The fourth proportional to 451,051,504.40, 630,111,617.20 and 451,051,504.40 is: 630,111,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,051,504.40 : 630,111,617.20 = 451,051,504.40 : x
  2. Step 2: Convert to fraction form
    451,051,504.40/630,111,617.20 = 451,051,504.40/x
  3. Step 3: Cross multiply
    451,051,504.40x = 630,111,617.20 × 451,051,504.40
  4. Step 4: Simplify right side
    451,051,504.40x = 284,212,792,877,976,928
  5. Step 5: Solve for x
    x = 284,212,792,877,976,928/451,051,504.40
  6. Step 6: Final answer
    x = 630,111,617.20

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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.