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Finding the Fourth Proportional to 366,987.10, 550,480.65 and 354,156.70

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Solution

The fourth proportional to 366,987.10, 550,480.65 and 354,156.70 is: 531,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,987.10 : 550,480.65 = 354,156.70 : x
  2. Step 2: Convert to fraction form
    366,987.10/550,480.65 = 354,156.70/x
  3. Step 3: Cross multiply
    366,987.10x = 550,480.65 × 354,156.70
  4. Step 4: Simplify right side
    366,987.10x = 194,956,410,417.86
  5. Step 5: Solve for x
    x = 194,956,410,417.86/366,987.10
  6. Step 6: Final answer
    x = 531,235.05

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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.