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Finding the Fourth Proportional to 614,662.13, 920,254.52 and 325,815.62

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Solution

The fourth proportional to 614,662.13, 920,254.52 and 325,815.62 is: 487,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,662.13 : 920,254.52 = 325,815.62 : x
  2. Step 2: Convert to fraction form
    614,662.13/920,254.52 = 325,815.62/x
  3. Step 3: Cross multiply
    614,662.13x = 920,254.52 × 325,815.62
  4. Step 4: Simplify right side
    614,662.13x = 299,833,296,991.60
  5. Step 5: Solve for x
    x = 299,833,296,991.60/614,662.13
  6. Step 6: Final answer
    x = 487,801.81

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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.