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Finding the Fourth Proportional to 369,427.56, 553,141.86 and 191,560.68

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Solution

The fourth proportional to 369,427.56, 553,141.86 and 191,560.68 is: 286,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,427.56 : 553,141.86 = 191,560.68 : x
  2. Step 2: Convert to fraction form
    369,427.56/553,141.86 = 191,560.68/x
  3. Step 3: Cross multiply
    369,427.56x = 553,141.86 × 191,560.68
  4. Step 4: Simplify right side
    369,427.56x = 105,960,230,838.07
  5. Step 5: Solve for x
    x = 105,960,230,838.07/369,427.56
  6. Step 6: Final answer
    x = 286,822.76

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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.