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Finding the Fourth Proportional to 607,056.20, 910,584.30 and 447,623.90

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Solution

The fourth proportional to 607,056.20, 910,584.30 and 447,623.90 is: 671,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,056.20 : 910,584.30 = 447,623.90 : x
  2. Step 2: Convert to fraction form
    607,056.20/910,584.30 = 447,623.90/x
  3. Step 3: Cross multiply
    607,056.20x = 910,584.30 × 447,623.90
  4. Step 4: Simplify right side
    607,056.20x = 407,599,295,644.77
  5. Step 5: Solve for x
    x = 407,599,295,644.77/607,056.20
  6. Step 6: Final answer
    x = 671,435.85

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Double scale
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Similar ratio
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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.