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Finding the Fourth Proportional to 354,200.40, 531,300.60 and 354,200.40

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Solution

The fourth proportional to 354,200.40, 531,300.60 and 354,200.40 is: 531,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,200.40 : 531,300.60 = 354,200.40 : x
  2. Step 2: Convert to fraction form
    354,200.40/531,300.60 = 354,200.40/x
  3. Step 3: Cross multiply
    354,200.40x = 531,300.60 × 354,200.40
  4. Step 4: Simplify right side
    354,200.40x = 188,186,885,040.24
  5. Step 5: Solve for x
    x = 188,186,885,040.24/354,200.40
  6. Step 6: Final answer
    x = 531,300.60

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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.