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Finding the Fourth Proportional to 607,058.40, 911,624.40 and 397,624.80

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Solution

The fourth proportional to 607,058.40, 911,624.40 and 397,624.80 is: 597,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,058.40 : 911,624.40 = 397,624.80 : x
  2. Step 2: Convert to fraction form
    607,058.40/911,624.40 = 397,624.80/x
  3. Step 3: Cross multiply
    607,058.40x = 911,624.40 × 397,624.80
  4. Step 4: Simplify right side
    607,058.40x = 362,484,469,725.12
  5. Step 5: Solve for x
    x = 362,484,469,725.12/607,058.40
  6. Step 6: Final answer
    x = 597,116.31

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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.