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Finding the Fourth Proportional to 514,809.60, 771,424.92 and 233,998.80

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Solution

The fourth proportional to 514,809.60, 771,424.92 and 233,998.80 is: 350,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,809.60 : 771,424.92 = 233,998.80 : x
  2. Step 2: Convert to fraction form
    514,809.60/771,424.92 = 233,998.80/x
  3. Step 3: Cross multiply
    514,809.60x = 771,424.92 × 233,998.80
  4. Step 4: Simplify right side
    514,809.60x = 180,512,505,570.10
  5. Step 5: Solve for x
    x = 180,512,505,570.10/514,809.60
  6. Step 6: Final answer
    x = 350,639.35

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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.