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Finding the Fourth Proportional to 353,606.80, 530,410.20 and 314,899.60

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Solution

The fourth proportional to 353,606.80, 530,410.20 and 314,899.60 is: 472,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,606.80 : 530,410.20 = 314,899.60 : x
  2. Step 2: Convert to fraction form
    353,606.80/530,410.20 = 314,899.60/x
  3. Step 3: Cross multiply
    353,606.80x = 530,410.20 × 314,899.60
  4. Step 4: Simplify right side
    353,606.80x = 167,025,959,815.92
  5. Step 5: Solve for x
    x = 167,025,959,815.92/353,606.80
  6. Step 6: Final answer
    x = 472,349.40

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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.