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Finding the Fourth Proportional to 567,374.98, 782,979.06 and 312,727.18

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Solution

The fourth proportional to 567,374.98, 782,979.06 and 312,727.18 is: 431,564.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,374.98 : 782,979.06 = 312,727.18 : x
  2. Step 2: Convert to fraction form
    567,374.98/782,979.06 = 312,727.18/x
  3. Step 3: Cross multiply
    567,374.98x = 782,979.06 × 312,727.18
  4. Step 4: Simplify right side
    567,374.98x = 244,858,833,432.85
  5. Step 5: Solve for x
    x = 244,858,833,432.85/567,374.98
  6. Step 6: Final answer
    x = 431,564.38

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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.