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Finding the Fourth Proportional to 514,536.60, 771,804.90 and 140,559.60

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Solution

The fourth proportional to 514,536.60, 771,804.90 and 140,559.60 is: 210,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,536.60 : 771,804.90 = 140,559.60 : x
  2. Step 2: Convert to fraction form
    514,536.60/771,804.90 = 140,559.60/x
  3. Step 3: Cross multiply
    514,536.60x = 771,804.90 × 140,559.60
  4. Step 4: Simplify right side
    514,536.60x = 108,484,588,022.04
  5. Step 5: Solve for x
    x = 108,484,588,022.04/514,536.60
  6. Step 6: Final answer
    x = 210,839.40

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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.