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Finding the Fourth Proportional to 554,970.35, 765,339.30 and 368,371.80

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Solution

The fourth proportional to 554,970.35, 765,339.30 and 368,371.80 is: 508,008.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,970.35 : 765,339.30 = 368,371.80 : x
  2. Step 2: Convert to fraction form
    554,970.35/765,339.30 = 368,371.80/x
  3. Step 3: Cross multiply
    554,970.35x = 765,339.30 × 368,371.80
  4. Step 4: Simplify right side
    554,970.35x = 281,929,415,551.74
  5. Step 5: Solve for x
    x = 281,929,415,551.74/554,970.35
  6. Step 6: Final answer
    x = 508,008.07

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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.