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Finding the Fourth Proportional to 514,358.84, 771,164.40 and 214,925.12

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Solution

The fourth proportional to 514,358.84, 771,164.40 and 214,925.12 is: 322,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,358.84 : 771,164.40 = 214,925.12 : x
  2. Step 2: Convert to fraction form
    514,358.84/771,164.40 = 214,925.12/x
  3. Step 3: Cross multiply
    514,358.84x = 771,164.40 × 214,925.12
  4. Step 4: Simplify right side
    514,358.84x = 165,742,601,209.73
  5. Step 5: Solve for x
    x = 165,742,601,209.73/514,358.84
  6. Step 6: Final answer
    x = 322,231.46

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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.