Home / 646,874.21-892,080.93-511,232.21

Finding the Fourth Proportional to 646,874.21, 892,080.93 and 511,232.21

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Solution

The fourth proportional to 646,874.21, 892,080.93 and 511,232.21 is: 705,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,874.21 : 892,080.93 = 511,232.21 : x
  2. Step 2: Convert to fraction form
    646,874.21/892,080.93 = 511,232.21/x
  3. Step 3: Cross multiply
    646,874.21x = 892,080.93 × 511,232.21
  4. Step 4: Simplify right side
    646,874.21x = 456,060,506,144.78
  5. Step 5: Solve for x
    x = 456,060,506,144.78/646,874.21
  6. Step 6: Final answer
    x = 705,021.93

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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.