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Finding the Fourth Proportional to 486,006.49, 670,705.06 and 265,255.84

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Solution

The fourth proportional to 486,006.49, 670,705.06 and 265,255.84 is: 366,061.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,006.49 : 670,705.06 = 265,255.84 : x
  2. Step 2: Convert to fraction form
    486,006.49/670,705.06 = 265,255.84/x
  3. Step 3: Cross multiply
    486,006.49x = 670,705.06 × 265,255.84
  4. Step 4: Simplify right side
    486,006.49x = 177,908,429,402.75
  5. Step 5: Solve for x
    x = 177,908,429,402.75/486,006.49
  6. Step 6: Final answer
    x = 366,061.84

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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.