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Finding the Fourth Proportional to 365,359.28, 548,026.56 and 128,695.77

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Solution

The fourth proportional to 365,359.28, 548,026.56 and 128,695.77 is: 193,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,359.28 : 548,026.56 = 128,695.77 : x
  2. Step 2: Convert to fraction form
    365,359.28/548,026.56 = 128,695.77/x
  3. Step 3: Cross multiply
    365,359.28x = 548,026.56 × 128,695.77
  4. Step 4: Simplify right side
    365,359.28x = 70,528,700,119.65
  5. Step 5: Solve for x
    x = 70,528,700,119.65/365,359.28
  6. Step 6: Final answer
    x = 193,039.30

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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.