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Finding the Fourth Proportional to 623,892.40, 936,162.60 and 291,468.40

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Solution

The fourth proportional to 623,892.40, 936,162.60 and 291,468.40 is: 437,353.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,892.40 : 936,162.60 = 291,468.40 : x
  2. Step 2: Convert to fraction form
    623,892.40/936,162.60 = 291,468.40/x
  3. Step 3: Cross multiply
    623,892.40x = 936,162.60 × 291,468.40
  4. Step 4: Simplify right side
    623,892.40x = 272,861,815,161.84
  5. Step 5: Solve for x
    x = 272,861,815,161.84/623,892.40
  6. Step 6: Final answer
    x = 437,353.97

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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.