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Finding the Fourth Proportional to 574,387.40, 792,871.52 and 451,559.36

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Solution

The fourth proportional to 574,387.40, 792,871.52 and 451,559.36 is: 623,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,387.40 : 792,871.52 = 451,559.36 : x
  2. Step 2: Convert to fraction form
    574,387.40/792,871.52 = 451,559.36/x
  3. Step 3: Cross multiply
    574,387.40x = 792,871.52 × 451,559.36
  4. Step 4: Simplify right side
    574,387.40x = 358,028,552,169.07
  5. Step 5: Solve for x
    x = 358,028,552,169.07/574,387.40
  6. Step 6: Final answer
    x = 623,322.44

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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.