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Finding the Fourth Proportional to 567,516.96, 783,179.44 and 312,877.26

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Solution

The fourth proportional to 567,516.96, 783,179.44 and 312,877.26 is: 431,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,516.96 : 783,179.44 = 312,877.26 : x
  2. Step 2: Convert to fraction form
    567,516.96/783,179.44 = 312,877.26/x
  3. Step 3: Cross multiply
    567,516.96x = 783,179.44 × 312,877.26
  4. Step 4: Simplify right side
    567,516.96x = 245,039,037,275.53
  5. Step 5: Solve for x
    x = 245,039,037,275.53/567,516.96
  6. Step 6: Final answer
    x = 431,773.95

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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.