Home / 840,730.53-1,160,236.14-458,778.27

Finding the Fourth Proportional to 840,730.53, 1,160,236.14 and 458,778.27

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Solution

The fourth proportional to 840,730.53, 1,160,236.14 and 458,778.27 is: 633,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,730.53 : 1,160,236.14 = 458,778.27 : x
  2. Step 2: Convert to fraction form
    840,730.53/1,160,236.14 = 458,778.27/x
  3. Step 3: Cross multiply
    840,730.53x = 1,160,236.14 × 458,778.27
  4. Step 4: Simplify right side
    840,730.53x = 532,291,129,100.68
  5. Step 5: Solve for x
    x = 532,291,129,100.68/840,730.53
  6. Step 6: Final answer
    x = 633,129.30

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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.