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Finding the Fourth Proportional to 449,957.58, 619,681.23 and 440,159.82

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Solution

The fourth proportional to 449,957.58, 619,681.23 and 440,159.82 is: 606,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,957.58 : 619,681.23 = 440,159.82 : x
  2. Step 2: Convert to fraction form
    449,957.58/619,681.23 = 440,159.82/x
  3. Step 3: Cross multiply
    449,957.58x = 619,681.23 × 440,159.82
  4. Step 4: Simplify right side
    449,957.58x = 272,758,778,654.18
  5. Step 5: Solve for x
    x = 272,758,778,654.18/449,957.58
  6. Step 6: Final answer
    x = 606,187.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.