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Finding the Fourth Proportional to 615,516.60, 923,274.90 and 194,825.40

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Solution

The fourth proportional to 615,516.60, 923,274.90 and 194,825.40 is: 292,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,516.60 : 923,274.90 = 194,825.40 : x
  2. Step 2: Convert to fraction form
    615,516.60/923,274.90 = 194,825.40/x
  3. Step 3: Cross multiply
    615,516.60x = 923,274.90 × 194,825.40
  4. Step 4: Simplify right side
    615,516.60x = 179,877,401,702.46
  5. Step 5: Solve for x
    x = 179,877,401,702.46/615,516.60
  6. Step 6: Final answer
    x = 292,238.10

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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.