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Finding the Fourth Proportional to 584,840.28, 807,062.94 and 330,215.16

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Solution

The fourth proportional to 584,840.28, 807,062.94 and 330,215.16 is: 455,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,840.28 : 807,062.94 = 330,215.16 : x
  2. Step 2: Convert to fraction form
    584,840.28/807,062.94 = 330,215.16/x
  3. Step 3: Cross multiply
    584,840.28x = 807,062.94 × 330,215.16
  4. Step 4: Simplify right side
    584,840.28x = 266,504,417,862.17
  5. Step 5: Solve for x
    x = 266,504,417,862.17/584,840.28
  6. Step 6: Final answer
    x = 455,687.52

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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.