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Finding the Fourth Proportional to 662,123.84, 912,876.96 and 481,098.56

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Solution

The fourth proportional to 662,123.84, 912,876.96 and 481,098.56 is: 663,295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,123.84 : 912,876.96 = 481,098.56 : x
  2. Step 2: Convert to fraction form
    662,123.84/912,876.96 = 481,098.56/x
  3. Step 3: Cross multiply
    662,123.84x = 912,876.96 × 481,098.56
  4. Step 4: Simplify right side
    662,123.84x = 439,183,790,913.18
  5. Step 5: Solve for x
    x = 439,183,790,913.18/662,123.84
  6. Step 6: Final answer
    x = 663,295.54

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Double scale
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1.5x scale

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.