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Finding the Fourth Proportional to 573,480.66, 791,436.14 and 318,848.25

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Solution

The fourth proportional to 573,480.66, 791,436.14 and 318,848.25 is: 440,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,480.66 : 791,436.14 = 318,848.25 : x
  2. Step 2: Convert to fraction form
    573,480.66/791,436.14 = 318,848.25/x
  3. Step 3: Cross multiply
    573,480.66x = 791,436.14 × 318,848.25
  4. Step 4: Simplify right side
    573,480.66x = 252,348,026,631.51
  5. Step 5: Solve for x
    x = 252,348,026,631.51/573,480.66
  6. Step 6: Final answer
    x = 440,028.83

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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.