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Finding the Fourth Proportional to 452,871.90, 678,705.06 and 239,594.30

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Solution

The fourth proportional to 452,871.90, 678,705.06 and 239,594.30 is: 359,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,871.90 : 678,705.06 = 239,594.30 : x
  2. Step 2: Convert to fraction form
    452,871.90/678,705.06 = 239,594.30/x
  3. Step 3: Cross multiply
    452,871.90x = 678,705.06 × 239,594.30
  4. Step 4: Simplify right side
    452,871.90x = 162,613,863,757.16
  5. Step 5: Solve for x
    x = 162,613,863,757.16/452,871.90
  6. Step 6: Final answer
    x = 359,072.54

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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.