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Finding the Fourth Proportional to 623,090.60, 933,979.80 and 243,864.80

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Solution

The fourth proportional to 623,090.60, 933,979.80 and 243,864.80 is: 365,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,090.60 : 933,979.80 = 243,864.80 : x
  2. Step 2: Convert to fraction form
    623,090.60/933,979.80 = 243,864.80/x
  3. Step 3: Cross multiply
    623,090.60x = 933,979.80 × 243,864.80
  4. Step 4: Simplify right side
    623,090.60x = 227,764,797,131.04
  5. Step 5: Solve for x
    x = 227,764,797,131.04/623,090.60
  6. Step 6: Final answer
    x = 365,540.42

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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.