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Finding the Fourth Proportional to 485,088.30, 664,574.18 and 466,906.92

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Solution

The fourth proportional to 485,088.30, 664,574.18 and 466,906.92 is: 639,665.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,088.30 : 664,574.18 = 466,906.92 : x
  2. Step 2: Convert to fraction form
    485,088.30/664,574.18 = 466,906.92/x
  3. Step 3: Cross multiply
    485,088.30x = 664,574.18 × 466,906.92
  4. Step 4: Simplify right side
    485,088.30x = 310,294,283,495.33
  5. Step 5: Solve for x
    x = 310,294,283,495.33/485,088.30
  6. Step 6: Final answer
    x = 639,665.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.