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Finding the Fourth Proportional to 648,164.80, 972,247.20 and 589,067.20

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Solution

The fourth proportional to 648,164.80, 972,247.20 and 589,067.20 is: 883,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,164.80 : 972,247.20 = 589,067.20 : x
  2. Step 2: Convert to fraction form
    648,164.80/972,247.20 = 589,067.20/x
  3. Step 3: Cross multiply
    648,164.80x = 972,247.20 × 589,067.20
  4. Step 4: Simplify right side
    648,164.80x = 572,718,935,811.84
  5. Step 5: Solve for x
    x = 572,718,935,811.84/648,164.80
  6. Step 6: Final answer
    x = 883,600.80

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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.