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Finding the Fourth Proportional to 590,530.40, 885,795.60 and 275,019.20

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Solution

The fourth proportional to 590,530.40, 885,795.60 and 275,019.20 is: 412,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,530.40 : 885,795.60 = 275,019.20 : x
  2. Step 2: Convert to fraction form
    590,530.40/885,795.60 = 275,019.20/x
  3. Step 3: Cross multiply
    590,530.40x = 885,795.60 × 275,019.20
  4. Step 4: Simplify right side
    590,530.40x = 243,610,797,275.52
  5. Step 5: Solve for x
    x = 243,610,797,275.52/590,530.40
  6. Step 6: Final answer
    x = 412,528.80

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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.