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Finding the Fourth Proportional to 468,802.76, 646,934.55 and 275,207.36

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Solution

The fourth proportional to 468,802.76, 646,934.55 and 275,207.36 is: 379,778.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,802.76 : 646,934.55 = 275,207.36 : x
  2. Step 2: Convert to fraction form
    468,802.76/646,934.55 = 275,207.36/x
  3. Step 3: Cross multiply
    468,802.76x = 646,934.55 × 275,207.36
  4. Step 4: Simplify right side
    468,802.76x = 178,041,145,331.59
  5. Step 5: Solve for x
    x = 178,041,145,331.59/468,802.76
  6. Step 6: Final answer
    x = 379,778.37

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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.