Home / 811,512.22-1,119,970.95-467,360.44

Finding the Fourth Proportional to 811,512.22, 1,119,970.95 and 467,360.44

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Solution

The fourth proportional to 811,512.22, 1,119,970.95 and 467,360.44 is: 645,005.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,512.22 : 1,119,970.95 = 467,360.44 : x
  2. Step 2: Convert to fraction form
    811,512.22/1,119,970.95 = 467,360.44/x
  3. Step 3: Cross multiply
    811,512.22x = 1,119,970.95 × 467,360.44
  4. Step 4: Simplify right side
    811,512.22x = 523,430,115,979.22
  5. Step 5: Solve for x
    x = 523,430,115,979.22/811,512.22
  6. Step 6: Final answer
    x = 645,005.83

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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.