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Finding the Fourth Proportional to 369,178.92, 553,595.04 and 219,439.08

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Solution

The fourth proportional to 369,178.92, 553,595.04 and 219,439.08 is: 329,055.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,178.92 : 553,595.04 = 219,439.08 : x
  2. Step 2: Convert to fraction form
    369,178.92/553,595.04 = 219,439.08/x
  3. Step 3: Cross multiply
    369,178.92x = 553,595.04 × 219,439.08
  4. Step 4: Simplify right side
    369,178.92x = 121,480,386,270.16
  5. Step 5: Solve for x
    x = 121,480,386,270.16/369,178.92
  6. Step 6: Final answer
    x = 329,055.59

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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.