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Finding the Fourth Proportional to 545,788.68, 814,845.43 and 417,031.10

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Solution

The fourth proportional to 545,788.68, 814,845.43 and 417,031.10 is: 622,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,788.68 : 814,845.43 = 417,031.10 : x
  2. Step 2: Convert to fraction form
    545,788.68/814,845.43 = 417,031.10/x
  3. Step 3: Cross multiply
    545,788.68x = 814,845.43 × 417,031.10
  4. Step 4: Simplify right side
    545,788.68x = 339,815,886,002.87
  5. Step 5: Solve for x
    x = 339,815,886,002.87/545,788.68
  6. Step 6: Final answer
    x = 622,614.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.