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Finding the Fourth Proportional to 328,614.60, 493,140.60 and 186,459.60

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Solution

The fourth proportional to 328,614.60, 493,140.60 and 186,459.60 is: 279,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,614.60 : 493,140.60 = 186,459.60 : x
  2. Step 2: Convert to fraction form
    328,614.60/493,140.60 = 186,459.60/x
  3. Step 3: Cross multiply
    328,614.60x = 493,140.60 × 186,459.60
  4. Step 4: Simplify right side
    328,614.60x = 91,950,799,019.76
  5. Step 5: Solve for x
    x = 91,950,799,019.76/328,614.60
  6. Step 6: Final answer
    x = 279,813.49

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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.