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Finding the Fourth Proportional to 590,440.80, 885,661.20 and 550,783.20

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Solution

The fourth proportional to 590,440.80, 885,661.20 and 550,783.20 is: 826,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,440.80 : 885,661.20 = 550,783.20 : x
  2. Step 2: Convert to fraction form
    590,440.80/885,661.20 = 550,783.20/x
  3. Step 3: Cross multiply
    590,440.80x = 885,661.20 × 550,783.20
  4. Step 4: Simplify right side
    590,440.80x = 487,807,309,851.84
  5. Step 5: Solve for x
    x = 487,807,309,851.84/590,440.80
  6. Step 6: Final answer
    x = 826,174.80

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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.