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Finding the Fourth Proportional to 607,049.20, 910,573.80 and 447,616.90

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Solution

The fourth proportional to 607,049.20, 910,573.80 and 447,616.90 is: 671,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,049.20 : 910,573.80 = 447,616.90 : x
  2. Step 2: Convert to fraction form
    607,049.20/910,573.80 = 447,616.90/x
  3. Step 3: Cross multiply
    607,049.20x = 910,573.80 × 447,616.90
  4. Step 4: Simplify right side
    607,049.20x = 407,588,221,577.22
  5. Step 5: Solve for x
    x = 407,588,221,577.22/607,049.20
  6. Step 6: Final answer
    x = 671,425.35

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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.