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Finding the Fourth Proportional to 369,710.06, 554,559.28 and 189,691.56

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Solution

The fourth proportional to 369,710.06, 554,559.28 and 189,691.56 is: 284,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,710.06 : 554,559.28 = 189,691.56 : x
  2. Step 2: Convert to fraction form
    369,710.06/554,559.28 = 189,691.56/x
  3. Step 3: Cross multiply
    369,710.06x = 554,559.28 × 189,691.56
  4. Step 4: Simplify right side
    369,710.06x = 105,195,214,461.45
  5. Step 5: Solve for x
    x = 105,195,214,461.45/369,710.06
  6. Step 6: Final answer
    x = 284,534.36

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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.