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Finding the Fourth Proportional to 519,601.40, 779,256.30 and 164,724.20

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Solution

The fourth proportional to 519,601.40, 779,256.30 and 164,724.20 is: 247,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,601.40 : 779,256.30 = 164,724.20 : x
  2. Step 2: Convert to fraction form
    519,601.40/779,256.30 = 164,724.20/x
  3. Step 3: Cross multiply
    519,601.40x = 779,256.30 × 164,724.20
  4. Step 4: Simplify right side
    519,601.40x = 128,362,370,612.46
  5. Step 5: Solve for x
    x = 128,362,370,612.46/519,601.40
  6. Step 6: Final answer
    x = 247,040.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.