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Finding the Fourth Proportional to 484,930.54, 669,153.81 and 298,632.39

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Solution

The fourth proportional to 484,930.54, 669,153.81 and 298,632.39 is: 412,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,930.54 : 669,153.81 = 298,632.39 : x
  2. Step 2: Convert to fraction form
    484,930.54/669,153.81 = 298,632.39/x
  3. Step 3: Cross multiply
    484,930.54x = 669,153.81 × 298,632.39
  4. Step 4: Simplify right side
    484,930.54x = 199,831,001,557.91
  5. Step 5: Solve for x
    x = 199,831,001,557.91/484,930.54
  6. Step 6: Final answer
    x = 412,081.70

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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.