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Finding the Fourth Proportional to 484,328.70, 726,485.70 and 217,901.04

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Solution

The fourth proportional to 484,328.70, 726,485.70 and 217,901.04 is: 326,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,328.70 : 726,485.70 = 217,901.04 : x
  2. Step 2: Convert to fraction form
    484,328.70/726,485.70 = 217,901.04/x
  3. Step 3: Cross multiply
    484,328.70x = 726,485.70 × 217,901.04
  4. Step 4: Simplify right side
    484,328.70x = 158,301,989,575.13
  5. Step 5: Solve for x
    x = 158,301,989,575.13/484,328.70
  6. Step 6: Final answer
    x = 326,848.25

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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.