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Finding the Fourth Proportional to 357,647.20, 536,470.80 and 224,620.90

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Solution

The fourth proportional to 357,647.20, 536,470.80 and 224,620.90 is: 336,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,647.20 : 536,470.80 = 224,620.90 : x
  2. Step 2: Convert to fraction form
    357,647.20/536,470.80 = 224,620.90/x
  3. Step 3: Cross multiply
    357,647.20x = 536,470.80 × 224,620.90
  4. Step 4: Simplify right side
    357,647.20x = 120,502,553,919.72
  5. Step 5: Solve for x
    x = 120,502,553,919.72/357,647.20
  6. Step 6: Final answer
    x = 336,931.35

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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.