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Finding the Fourth Proportional to 393,948.60, 590,922.90 and 183,607.80

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Solution

The fourth proportional to 393,948.60, 590,922.90 and 183,607.80 is: 275,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,948.60 : 590,922.90 = 183,607.80 : x
  2. Step 2: Convert to fraction form
    393,948.60/590,922.90 = 183,607.80/x
  3. Step 3: Cross multiply
    393,948.60x = 590,922.90 × 183,607.80
  4. Step 4: Simplify right side
    393,948.60x = 108,498,053,638.62
  5. Step 5: Solve for x
    x = 108,498,053,638.62/393,948.60
  6. Step 6: Final answer
    x = 275,411.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.