Home / 826,451.39-1,140,415.30-463,915.12

Finding the Fourth Proportional to 826,451.39, 1,140,415.30 and 463,915.12

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Solution

The fourth proportional to 826,451.39, 1,140,415.30 and 463,915.12 is: 640,153.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,451.39 : 1,140,415.30 = 463,915.12 : x
  2. Step 2: Convert to fraction form
    826,451.39/1,140,415.30 = 463,915.12/x
  3. Step 3: Cross multiply
    826,451.39x = 1,140,415.30 × 463,915.12
  4. Step 4: Simplify right side
    826,451.39x = 529,055,900,749.34
  5. Step 5: Solve for x
    x = 529,055,900,749.34/826,451.39
  6. Step 6: Final answer
    x = 640,153.68

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Double scale
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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.