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Finding the Fourth Proportional to 541,558.40, 747,250.99 and 312,083.51

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Solution

The fourth proportional to 541,558.40, 747,250.99 and 312,083.51 is: 430,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,558.40 : 747,250.99 = 312,083.51 : x
  2. Step 2: Convert to fraction form
    541,558.40/747,250.99 = 312,083.51/x
  3. Step 3: Cross multiply
    541,558.40x = 747,250.99 × 312,083.51
  4. Step 4: Simplify right side
    541,558.40x = 233,204,707,293.71
  5. Step 5: Solve for x
    x = 233,204,707,293.71/541,558.40
  6. Step 6: Final answer
    x = 430,617.84

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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.