Home / 869,192.28-1,199,481.54-487,219.05

Finding the Fourth Proportional to 869,192.28, 1,199,481.54 and 487,219.05

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Solution

The fourth proportional to 869,192.28, 1,199,481.54 and 487,219.05 is: 672,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,192.28 : 1,199,481.54 = 487,219.05 : x
  2. Step 2: Convert to fraction form
    869,192.28/1,199,481.54 = 487,219.05/x
  3. Step 3: Cross multiply
    869,192.28x = 1,199,481.54 × 487,219.05
  4. Step 4: Simplify right side
    869,192.28x = 584,410,256,411.34
  5. Step 5: Solve for x
    x = 584,410,256,411.34/869,192.28
  6. Step 6: Final answer
    x = 672,360.16

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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.