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Finding the Fourth Proportional to 589,085.60, 883,628.40 and 289,612.40

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Solution

The fourth proportional to 589,085.60, 883,628.40 and 289,612.40 is: 434,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,085.60 : 883,628.40 = 289,612.40 : x
  2. Step 2: Convert to fraction form
    589,085.60/883,628.40 = 289,612.40/x
  3. Step 3: Cross multiply
    589,085.60x = 883,628.40 × 289,612.40
  4. Step 4: Simplify right side
    589,085.60x = 255,909,741,632.16
  5. Step 5: Solve for x
    x = 255,909,741,632.16/589,085.60
  6. Step 6: Final answer
    x = 434,418.60

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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.