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Finding the Fourth Proportional to 662,630.36, 914,405.64 and 404,938.62

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Solution

The fourth proportional to 662,630.36, 914,405.64 and 404,938.62 is: 558,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,630.36 : 914,405.64 = 404,938.62 : x
  2. Step 2: Convert to fraction form
    662,630.36/914,405.64 = 404,938.62/x
  3. Step 3: Cross multiply
    662,630.36x = 914,405.64 × 404,938.62
  4. Step 4: Simplify right side
    662,630.36x = 370,278,157,981.82
  5. Step 5: Solve for x
    x = 370,278,157,981.82/662,630.36
  6. Step 6: Final answer
    x = 558,800.48

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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.