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Finding the Fourth Proportional to 615,548.40, 923,092.20 and 216,034.80

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Solution

The fourth proportional to 615,548.40, 923,092.20 and 216,034.80 is: 323,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,548.40 : 923,092.20 = 216,034.80 : x
  2. Step 2: Convert to fraction form
    615,548.40/923,092.20 = 216,034.80/x
  3. Step 3: Cross multiply
    615,548.40x = 923,092.20 × 216,034.80
  4. Step 4: Simplify right side
    615,548.40x = 199,420,038,808.56
  5. Step 5: Solve for x
    x = 199,420,038,808.56/615,548.40
  6. Step 6: Final answer
    x = 323,971.34

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1.5x scale

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.