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Finding the Fourth Proportional to 481,434.51, 722,047.20 and 144,384.66

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Solution

The fourth proportional to 481,434.51, 722,047.20 and 144,384.66 is: 216,545.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,434.51 : 722,047.20 = 144,384.66 : x
  2. Step 2: Convert to fraction form
    481,434.51/722,047.20 = 144,384.66/x
  3. Step 3: Cross multiply
    481,434.51x = 722,047.20 × 144,384.66
  4. Step 4: Simplify right side
    481,434.51x = 104,252,539,475.95
  5. Step 5: Solve for x
    x = 104,252,539,475.95/481,434.51
  6. Step 6: Final answer
    x = 216,545.63

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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.