Home / 769,404.40-1,154,106.60-437,628.40

Finding the Fourth Proportional to 769,404.40, 1,154,106.60 and 437,628.40

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Solution

The fourth proportional to 769,404.40, 1,154,106.60 and 437,628.40 is: 656,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,404.40 : 1,154,106.60 = 437,628.40 : x
  2. Step 2: Convert to fraction form
    769,404.40/1,154,106.60 = 437,628.40/x
  3. Step 3: Cross multiply
    769,404.40x = 1,154,106.60 × 437,628.40
  4. Step 4: Simplify right side
    769,404.40x = 505,069,824,787.44
  5. Step 5: Solve for x
    x = 505,069,824,787.44/769,404.40
  6. Step 6: Final answer
    x = 656,442.60

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Double scale
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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.