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Finding the Fourth Proportional to 474,093.80, 711,140.70 and 435,386.60

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Solution

The fourth proportional to 474,093.80, 711,140.70 and 435,386.60 is: 653,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,093.80 : 711,140.70 = 435,386.60 : x
  2. Step 2: Convert to fraction form
    474,093.80/711,140.70 = 435,386.60/x
  3. Step 3: Cross multiply
    474,093.80x = 711,140.70 × 435,386.60
  4. Step 4: Simplify right side
    474,093.80x = 309,621,131,494.62
  5. Step 5: Solve for x
    x = 309,621,131,494.62/474,093.80
  6. Step 6: Final answer
    x = 653,079.90

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Similar ratio
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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.