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Finding the Fourth Proportional to 615,657.40, 923,486.10 and 332,222.20

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Solution

The fourth proportional to 615,657.40, 923,486.10 and 332,222.20 is: 498,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,657.40 : 923,486.10 = 332,222.20 : x
  2. Step 2: Convert to fraction form
    615,657.40/923,486.10 = 332,222.20/x
  3. Step 3: Cross multiply
    615,657.40x = 923,486.10 × 332,222.20
  4. Step 4: Simplify right side
    615,657.40x = 306,802,583,811.42
  5. Step 5: Solve for x
    x = 306,802,583,811.42/615,657.40
  6. Step 6: Final answer
    x = 498,333.30

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Similar ratio
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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.