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Finding the Fourth Proportional to 441,421.98, 662,128.27 and 292,329.33

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Solution

The fourth proportional to 441,421.98, 662,128.27 and 292,329.33 is: 438,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,421.98 : 662,128.27 = 292,329.33 : x
  2. Step 2: Convert to fraction form
    441,421.98/662,128.27 = 292,329.33/x
  3. Step 3: Cross multiply
    441,421.98x = 662,128.27 × 292,329.33
  4. Step 4: Simplify right side
    441,421.98x = 193,559,509,501.69
  5. Step 5: Solve for x
    x = 193,559,509,501.69/441,421.98
  6. Step 6: Final answer
    x = 438,490.88

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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.