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Finding the Fourth Proportional to 366,988.60, 550,482.90 and 340,416.55

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Solution

The fourth proportional to 366,988.60, 550,482.90 and 340,416.55 is: 510,624.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,988.60 : 550,482.90 = 340,416.55 : x
  2. Step 2: Convert to fraction form
    366,988.60/550,482.90 = 340,416.55/x
  3. Step 3: Cross multiply
    366,988.60x = 550,482.90 × 340,416.55
  4. Step 4: Simplify right side
    366,988.60x = 187,393,489,652.00
  5. Step 5: Solve for x
    x = 187,393,489,652.00/366,988.60
  6. Step 6: Final answer
    x = 510,624.83

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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.