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Finding the Fourth Proportional to 432,866.10, 649,627.20 and 283,056.60

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Solution

The fourth proportional to 432,866.10, 649,627.20 and 283,056.60 is: 424,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,866.10 : 649,627.20 = 283,056.60 : x
  2. Step 2: Convert to fraction form
    432,866.10/649,627.20 = 283,056.60/x
  3. Step 3: Cross multiply
    432,866.10x = 649,627.20 × 283,056.60
  4. Step 4: Simplify right side
    432,866.10x = 183,881,266,499.52
  5. Step 5: Solve for x
    x = 183,881,266,499.52/432,866.10
  6. Step 6: Final answer
    x = 424,799.42

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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.