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Finding the Fourth Proportional to 603,812,404.04, 905,569,015.25 and 258,726,898.76

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Solution

The fourth proportional to 603,812,404.04, 905,569,015.25 and 258,726,898.76 is: 388,026,250.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,812,404.04 : 905,569,015.25 = 258,726,898.76 : x
  2. Step 2: Convert to fraction form
    603,812,404.04/905,569,015.25 = 258,726,898.76/x
  3. Step 3: Cross multiply
    603,812,404.04x = 905,569,015.25 × 258,726,898.76
  4. Step 4: Simplify right side
    603,812,404.04x = 234,295,062,922,958,176
  5. Step 5: Solve for x
    x = 234,295,062,922,958,176/603,812,404.04
  6. Step 6: Final answer
    x = 388,026,250.14

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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.