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Finding the Fourth Proportional to 365,330.64, 548,050.80 and 128,631.60

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Solution

The fourth proportional to 365,330.64, 548,050.80 and 128,631.60 is: 192,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,330.64 : 548,050.80 = 128,631.60 : x
  2. Step 2: Convert to fraction form
    365,330.64/548,050.80 = 128,631.60/x
  3. Step 3: Cross multiply
    365,330.64x = 548,050.80 × 128,631.60
  4. Step 4: Simplify right side
    365,330.64x = 70,496,651,285.28
  5. Step 5: Solve for x
    x = 70,496,651,285.28/365,330.64
  6. Step 6: Final answer
    x = 192,966.71

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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.