Home / 909,186.56-1,255,215.04-808,305.38

Finding the Fourth Proportional to 909,186.56, 1,255,215.04 and 808,305.38

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Solution

The fourth proportional to 909,186.56, 1,255,215.04 and 808,305.38 is: 1,115,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,186.56 : 1,255,215.04 = 808,305.38 : x
  2. Step 2: Convert to fraction form
    909,186.56/1,255,215.04 = 808,305.38/x
  3. Step 3: Cross multiply
    909,186.56x = 1,255,215.04 × 808,305.38
  4. Step 4: Simplify right side
    909,186.56x = 1,014,597,061,592.08
  5. Step 5: Solve for x
    x = 1,014,597,061,592.08/909,186.56
  6. Step 6: Final answer
    x = 1,115,939.36

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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.