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Finding the Fourth Proportional to 464,905.60, 697,358.40 and 132,438.40

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Solution

The fourth proportional to 464,905.60, 697,358.40 and 132,438.40 is: 198,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,905.60 : 697,358.40 = 132,438.40 : x
  2. Step 2: Convert to fraction form
    464,905.60/697,358.40 = 132,438.40/x
  3. Step 3: Cross multiply
    464,905.60x = 697,358.40 × 132,438.40
  4. Step 4: Simplify right side
    464,905.60x = 92,357,030,722.56
  5. Step 5: Solve for x
    x = 92,357,030,722.56/464,905.60
  6. Step 6: Final answer
    x = 198,657.60

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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.