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Finding the Fourth Proportional to 607,601.80, 911,532.30 and 186,920.20

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Solution

The fourth proportional to 607,601.80, 911,532.30 and 186,920.20 is: 280,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,601.80 : 911,532.30 = 186,920.20 : x
  2. Step 2: Convert to fraction form
    607,601.80/911,532.30 = 186,920.20/x
  3. Step 3: Cross multiply
    607,601.80x = 911,532.30 × 186,920.20
  4. Step 4: Simplify right side
    607,601.80x = 170,383,799,822.46
  5. Step 5: Solve for x
    x = 170,383,799,822.46/607,601.80
  6. Step 6: Final answer
    x = 280,420.17

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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.