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Finding the Fourth Proportional to 922,908.70, 1,384,363.05 and 655,219.90

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Solution

The fourth proportional to 922,908.70, 1,384,363.05 and 655,219.90 is: 982,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,908.70 : 1,384,363.05 = 655,219.90 : x
  2. Step 2: Convert to fraction form
    922,908.70/1,384,363.05 = 655,219.90/x
  3. Step 3: Cross multiply
    922,908.70x = 1,384,363.05 × 655,219.90
  4. Step 4: Simplify right side
    922,908.70x = 907,062,219,184.70
  5. Step 5: Solve for x
    x = 907,062,219,184.70/922,908.70
  6. Step 6: Final answer
    x = 982,829.85

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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.