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Finding the Fourth Proportional to 589,390.80, 884,086.20 and 471,292.80

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Solution

The fourth proportional to 589,390.80, 884,086.20 and 471,292.80 is: 706,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,390.80 : 884,086.20 = 471,292.80 : x
  2. Step 2: Convert to fraction form
    589,390.80/884,086.20 = 471,292.80/x
  3. Step 3: Cross multiply
    589,390.80x = 884,086.20 × 471,292.80
  4. Step 4: Simplify right side
    589,390.80x = 416,663,460,639.36
  5. Step 5: Solve for x
    x = 416,663,460,639.36/589,390.80
  6. Step 6: Final answer
    x = 706,939.20

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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.