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Finding the Fourth Proportional to 732,672.70, 1,099,009.05 and 520,096.30

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Solution

The fourth proportional to 732,672.70, 1,099,009.05 and 520,096.30 is: 780,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,672.70 : 1,099,009.05 = 520,096.30 : x
  2. Step 2: Convert to fraction form
    732,672.70/1,099,009.05 = 520,096.30/x
  3. Step 3: Cross multiply
    732,672.70x = 1,099,009.05 × 520,096.30
  4. Step 4: Simplify right side
    732,672.70x = 571,590,540,571.52
  5. Step 5: Solve for x
    x = 571,590,540,571.52/732,672.70
  6. Step 6: Final answer
    x = 780,144.45

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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.