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Finding the Fourth Proportional to 615,645.40, 923,496.90 and 194,954.20

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Solution

The fourth proportional to 615,645.40, 923,496.90 and 194,954.20 is: 292,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,645.40 : 923,496.90 = 194,954.20 : x
  2. Step 2: Convert to fraction form
    615,645.40/923,496.90 = 194,954.20/x
  3. Step 3: Cross multiply
    615,645.40x = 923,496.90 × 194,954.20
  4. Step 4: Simplify right side
    615,645.40x = 180,039,599,341.98
  5. Step 5: Solve for x
    x = 180,039,599,341.98/615,645.40
  6. Step 6: Final answer
    x = 292,440.42

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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.