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Finding the Fourth Proportional to 662,905.13, 914,809.10 and 361,099.13

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Solution

The fourth proportional to 662,905.13, 914,809.10 and 361,099.13 is: 498,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,905.13 : 914,809.10 = 361,099.13 : x
  2. Step 2: Convert to fraction form
    662,905.13/914,809.10 = 361,099.13/x
  3. Step 3: Cross multiply
    662,905.13x = 914,809.10 × 361,099.13
  4. Step 4: Simplify right side
    662,905.13x = 330,336,763,746.54
  5. Step 5: Solve for x
    x = 330,336,763,746.54/662,905.13
  6. Step 6: Final answer
    x = 498,316.80

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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.