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Finding the Fourth Proportional to 348,903.60, 522,059.40 and 255,591.60

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Solution

The fourth proportional to 348,903.60, 522,059.40 and 255,591.60 is: 382,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,903.60 : 522,059.40 = 255,591.60 : x
  2. Step 2: Convert to fraction form
    348,903.60/522,059.40 = 255,591.60/x
  3. Step 3: Cross multiply
    348,903.60x = 522,059.40 × 255,591.60
  4. Step 4: Simplify right side
    348,903.60x = 133,433,997,341.04
  5. Step 5: Solve for x
    x = 133,433,997,341.04/348,903.60
  6. Step 6: Final answer
    x = 382,438.01

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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.