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Finding the Fourth Proportional to 364,009.60, 545,349.12 and 263,921.92

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Solution

The fourth proportional to 364,009.60, 545,349.12 and 263,921.92 is: 395,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,009.60 : 545,349.12 = 263,921.92 : x
  2. Step 2: Convert to fraction form
    364,009.60/545,349.12 = 263,921.92/x
  3. Step 3: Cross multiply
    364,009.60x = 545,349.12 × 263,921.92
  4. Step 4: Simplify right side
    364,009.60x = 143,929,586,820.71
  5. Step 5: Solve for x
    x = 143,929,586,820.71/364,009.60
  6. Step 6: Final answer
    x = 395,400.52

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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.