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Finding the Fourth Proportional to 567,511.95, 783,172.53 and 312,872.25

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Solution

The fourth proportional to 567,511.95, 783,172.53 and 312,872.25 is: 431,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,511.95 : 783,172.53 = 312,872.25 : x
  2. Step 2: Convert to fraction form
    567,511.95/783,172.53 = 312,872.25/x
  3. Step 3: Cross multiply
    567,511.95x = 783,172.53 × 312,872.25
  4. Step 4: Simplify right side
    567,511.95x = 245,032,951,599.29
  5. Step 5: Solve for x
    x = 245,032,951,599.29/567,511.95
  6. Step 6: Final answer
    x = 431,767.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.