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Finding the Fourth Proportional to 558,496,607.87, 770,730,673.34 and 307,606,687.67

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Solution

The fourth proportional to 558,496,607.87, 770,730,673.34 and 307,606,687.67 is: 424,500,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,496,607.87 : 770,730,673.34 = 307,606,687.67 : x
  2. Step 2: Convert to fraction form
    558,496,607.87/770,730,673.34 = 307,606,687.67/x
  3. Step 3: Cross multiply
    558,496,607.87x = 770,730,673.34 × 307,606,687.67
  4. Step 4: Simplify right side
    558,496,607.87x = 237,081,909,511,786,208
  5. Step 5: Solve for x
    x = 237,081,909,511,786,208/558,496,607.87
  6. Step 6: Final answer
    x = 424,500,178.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.