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Finding the Fourth Proportional to 369,453.64, 553,179.45 and 191,587.67

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Solution

The fourth proportional to 369,453.64, 553,179.45 and 191,587.67 is: 286,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,453.64 : 553,179.45 = 191,587.67 : x
  2. Step 2: Convert to fraction form
    369,453.64/553,179.45 = 191,587.67/x
  3. Step 3: Cross multiply
    369,453.64x = 553,179.45 × 191,587.67
  4. Step 4: Simplify right side
    369,453.64x = 105,982,361,917.38
  5. Step 5: Solve for x
    x = 105,982,361,917.38/369,453.64
  6. Step 6: Final answer
    x = 286,862.41

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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.