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Finding the Fourth Proportional to 514,810.58, 772,220.43 and 211,371.62

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Solution

The fourth proportional to 514,810.58, 772,220.43 and 211,371.62 is: 317,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,810.58 : 772,220.43 = 211,371.62 : x
  2. Step 2: Convert to fraction form
    514,810.58/772,220.43 = 211,371.62/x
  3. Step 3: Cross multiply
    514,810.58x = 772,220.43 × 211,371.62
  4. Step 4: Simplify right side
    514,810.58x = 163,225,482,229.34
  5. Step 5: Solve for x
    x = 163,225,482,229.34/514,810.58
  6. Step 6: Final answer
    x = 317,059.30

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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.