Home / 729,040.60-1,093,560.90-393,117.40

Finding the Fourth Proportional to 729,040.60, 1,093,560.90 and 393,117.40

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Solution

The fourth proportional to 729,040.60, 1,093,560.90 and 393,117.40 is: 589,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,040.60 : 1,093,560.90 = 393,117.40 : x
  2. Step 2: Convert to fraction form
    729,040.60/1,093,560.90 = 393,117.40/x
  3. Step 3: Cross multiply
    729,040.60x = 1,093,560.90 × 393,117.40
  4. Step 4: Simplify right side
    729,040.60x = 429,897,817,749.66
  5. Step 5: Solve for x
    x = 429,897,817,749.66/729,040.60
  6. Step 6: Final answer
    x = 589,676.10

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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.