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Finding the Fourth Proportional to 461,431.60, 644,429.60 and 461,431.60

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Solution

The fourth proportional to 461,431.60, 644,429.60 and 461,431.60 is: 644,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,431.60 : 644,429.60 = 461,431.60 : x
  2. Step 2: Convert to fraction form
    461,431.60/644,429.60 = 461,431.60/x
  3. Step 3: Cross multiply
    461,431.60x = 644,429.60 × 461,431.60
  4. Step 4: Simplify right side
    461,431.60x = 297,360,181,415.36
  5. Step 5: Solve for x
    x = 297,360,181,415.36/461,431.60
  6. Step 6: Final answer
    x = 644,429.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.