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Finding the Fourth Proportional to 545,785.67, 814,840.96 and 417,028.10

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Solution

The fourth proportional to 545,785.67, 814,840.96 and 417,028.10 is: 622,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,785.67 : 814,840.96 = 417,028.10 : x
  2. Step 2: Convert to fraction form
    545,785.67/814,840.96 = 417,028.10/x
  3. Step 3: Cross multiply
    545,785.67x = 814,840.96 × 417,028.10
  4. Step 4: Simplify right side
    545,785.67x = 339,811,574,319.34
  5. Step 5: Solve for x
    x = 339,811,574,319.34/545,785.67
  6. Step 6: Final answer
    x = 622,609.92

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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.