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Finding the Fourth Proportional to 449,574.01, 671,081.42 and 392,822.41

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Solution

The fourth proportional to 449,574.01, 671,081.42 and 392,822.41 is: 586,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,574.01 : 671,081.42 = 392,822.41 : x
  2. Step 2: Convert to fraction form
    449,574.01/671,081.42 = 392,822.41/x
  3. Step 3: Cross multiply
    449,574.01x = 671,081.42 × 392,822.41
  4. Step 4: Simplify right side
    449,574.01x = 263,615,820,710.62
  5. Step 5: Solve for x
    x = 263,615,820,710.62/449,574.01
  6. Step 6: Final answer
    x = 586,368.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.