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Finding the Fourth Proportional to 555,017.80, 832,526.70 and 415,049.80

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Solution

The fourth proportional to 555,017.80, 832,526.70 and 415,049.80 is: 622,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,017.80 : 832,526.70 = 415,049.80 : x
  2. Step 2: Convert to fraction form
    555,017.80/832,526.70 = 415,049.80/x
  3. Step 3: Cross multiply
    555,017.80x = 832,526.70 × 415,049.80
  4. Step 4: Simplify right side
    555,017.80x = 345,540,040,329.66
  5. Step 5: Solve for x
    x = 345,540,040,329.66/555,017.80
  6. Step 6: Final answer
    x = 622,574.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.