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Finding the Fourth Proportional to 493,015.40, 739,523.10 and 473,661.80

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Solution

The fourth proportional to 493,015.40, 739,523.10 and 473,661.80 is: 710,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,015.40 : 739,523.10 = 473,661.80 : x
  2. Step 2: Convert to fraction form
    493,015.40/739,523.10 = 473,661.80/x
  3. Step 3: Cross multiply
    493,015.40x = 739,523.10 × 473,661.80
  4. Step 4: Simplify right side
    493,015.40x = 350,283,842,687.58
  5. Step 5: Solve for x
    x = 350,283,842,687.58/493,015.40
  6. Step 6: Final answer
    x = 710,492.70

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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.