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Finding the Fourth Proportional to 365,311.59, 548,011.67 and 128,605.83

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Solution

The fourth proportional to 365,311.59, 548,011.67 and 128,605.83 is: 192,924.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,311.59 : 548,011.67 = 128,605.83 : x
  2. Step 2: Convert to fraction form
    365,311.59/548,011.67 = 128,605.83/x
  3. Step 3: Cross multiply
    365,311.59x = 548,011.67 × 128,605.83
  4. Step 4: Simplify right side
    365,311.59x = 70,477,495,027.01
  5. Step 5: Solve for x
    x = 70,477,495,027.01/365,311.59
  6. Step 6: Final answer
    x = 192,924.33

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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.