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Finding the Fourth Proportional to 554,870.98, 765,639.85 and 336,966.33

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Solution

The fourth proportional to 554,870.98, 765,639.85 and 336,966.33 is: 464,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,870.98 : 765,639.85 = 336,966.33 : x
  2. Step 2: Convert to fraction form
    554,870.98/765,639.85 = 336,966.33/x
  3. Step 3: Cross multiply
    554,870.98x = 765,639.85 × 336,966.33
  4. Step 4: Simplify right side
    554,870.98x = 257,994,850,356.25
  5. Step 5: Solve for x
    x = 257,994,850,356.25/554,870.98
  6. Step 6: Final answer
    x = 464,963.68

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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.