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Finding the Fourth Proportional to 589,107.60, 883,661.40 and 289,634.40

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Solution

The fourth proportional to 589,107.60, 883,661.40 and 289,634.40 is: 434,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,107.60 : 883,661.40 = 289,634.40 : x
  2. Step 2: Convert to fraction form
    589,107.60/883,661.40 = 289,634.40/x
  3. Step 3: Cross multiply
    589,107.60x = 883,661.40 × 289,634.40
  4. Step 4: Simplify right side
    589,107.60x = 255,938,739,392.16
  5. Step 5: Solve for x
    x = 255,938,739,392.16/589,107.60
  6. Step 6: Final answer
    x = 434,451.60

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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.