Home / 810,180.64-1,118,144.28-488,053.36

Finding the Fourth Proportional to 810,180.64, 1,118,144.28 and 488,053.36

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Solution

The fourth proportional to 810,180.64, 1,118,144.28 and 488,053.36 is: 673,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,180.64 : 1,118,144.28 = 488,053.36 : x
  2. Step 2: Convert to fraction form
    810,180.64/1,118,144.28 = 488,053.36/x
  3. Step 3: Cross multiply
    810,180.64x = 1,118,144.28 × 488,053.36
  4. Step 4: Simplify right side
    810,180.64x = 545,714,072,818.78
  5. Step 5: Solve for x
    x = 545,714,072,818.78/810,180.64
  6. Step 6: Final answer
    x = 673,570.86

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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.