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Finding the Fourth Proportional to 590,419.60, 885,629.40 and 353,640.40

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Solution

The fourth proportional to 590,419.60, 885,629.40 and 353,640.40 is: 530,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,419.60 : 885,629.40 = 353,640.40 : x
  2. Step 2: Convert to fraction form
    590,419.60/885,629.40 = 353,640.40/x
  3. Step 3: Cross multiply
    590,419.60x = 885,629.40 × 353,640.40
  4. Step 4: Simplify right side
    590,419.60x = 313,194,335,267.76
  5. Step 5: Solve for x
    x = 313,194,335,267.76/590,419.60
  6. Step 6: Final answer
    x = 530,460.60

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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.