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Finding the Fourth Proportional to 400,594.33, 553,194.90 and 257,602.81

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Solution

The fourth proportional to 400,594.33, 553,194.90 and 257,602.81 is: 355,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,594.33 : 553,194.90 = 257,602.81 : x
  2. Step 2: Convert to fraction form
    400,594.33/553,194.90 = 257,602.81/x
  3. Step 3: Cross multiply
    400,594.33x = 553,194.90 × 257,602.81
  4. Step 4: Simplify right side
    400,594.33x = 142,504,560,717.67
  5. Step 5: Solve for x
    x = 142,504,560,717.67/400,594.33
  6. Step 6: Final answer
    x = 355,732.85

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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.