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Finding the Fourth Proportional to 445,043.60, 614,149.80 and 243,835.28

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Solution

The fourth proportional to 445,043.60, 614,149.80 and 243,835.28 is: 336,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,043.60 : 614,149.80 = 243,835.28 : x
  2. Step 2: Convert to fraction form
    445,043.60/614,149.80 = 243,835.28/x
  3. Step 3: Cross multiply
    445,043.60x = 614,149.80 × 243,835.28
  4. Step 4: Simplify right side
    445,043.60x = 149,751,388,444.94
  5. Step 5: Solve for x
    x = 149,751,388,444.94/445,043.60
  6. Step 6: Final answer
    x = 336,487.01

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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.