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Finding the Fourth Proportional to 474,080.80, 711,121.20 and 435,373.60

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Solution

The fourth proportional to 474,080.80, 711,121.20 and 435,373.60 is: 653,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,080.80 : 711,121.20 = 435,373.60 : x
  2. Step 2: Convert to fraction form
    474,080.80/711,121.20 = 435,373.60/x
  3. Step 3: Cross multiply
    474,080.80x = 711,121.20 × 435,373.60
  4. Step 4: Simplify right side
    474,080.80x = 309,603,396,880.32
  5. Step 5: Solve for x
    x = 309,603,396,880.32/474,080.80
  6. Step 6: Final answer
    x = 653,060.40

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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.