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Finding the Fourth Proportional to 590,638.40, 885,957.60 and 404,014.40

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Solution

The fourth proportional to 590,638.40, 885,957.60 and 404,014.40 is: 606,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,638.40 : 885,957.60 = 404,014.40 : x
  2. Step 2: Convert to fraction form
    590,638.40/885,957.60 = 404,014.40/x
  3. Step 3: Cross multiply
    590,638.40x = 885,957.60 × 404,014.40
  4. Step 4: Simplify right side
    590,638.40x = 357,939,628,189.44
  5. Step 5: Solve for x
    x = 357,939,628,189.44/590,638.40
  6. Step 6: Final answer
    x = 606,021.60

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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.