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Finding the Fourth Proportional to 432,048.30, 648,072.45 and 404,400.30

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Solution

The fourth proportional to 432,048.30, 648,072.45 and 404,400.30 is: 606,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,048.30 : 648,072.45 = 404,400.30 : x
  2. Step 2: Convert to fraction form
    432,048.30/648,072.45 = 404,400.30/x
  3. Step 3: Cross multiply
    432,048.30x = 648,072.45 × 404,400.30
  4. Step 4: Simplify right side
    432,048.30x = 262,080,693,201.74
  5. Step 5: Solve for x
    x = 262,080,693,201.74/432,048.30
  6. Step 6: Final answer
    x = 606,600.45

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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.