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Finding the Fourth Proportional to 615,902.72, 923,886.89 and 195,211.40

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Solution

The fourth proportional to 615,902.72, 923,886.89 and 195,211.40 is: 292,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,902.72 : 923,886.89 = 195,211.40 : x
  2. Step 2: Convert to fraction form
    615,902.72/923,886.89 = 195,211.40/x
  3. Step 3: Cross multiply
    615,902.72x = 923,886.89 × 195,211.40
  4. Step 4: Simplify right side
    615,902.72x = 180,353,256,036.29
  5. Step 5: Solve for x
    x = 180,353,256,036.29/615,902.72
  6. Step 6: Final answer
    x = 292,827.50

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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.