Home / 511,814.86-706,304.58-285,460.36

Finding the Fourth Proportional to 511,814.86, 706,304.58 and 285,460.36

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Solution

The fourth proportional to 511,814.86, 706,304.58 and 285,460.36 is: 393,935.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,814.86 : 706,304.58 = 285,460.36 : x
  2. Step 2: Convert to fraction form
    511,814.86/706,304.58 = 285,460.36/x
  3. Step 3: Cross multiply
    511,814.86x = 706,304.58 × 285,460.36
  4. Step 4: Simplify right side
    511,814.86x = 201,621,959,676.45
  5. Step 5: Solve for x
    x = 201,621,959,676.45/511,814.86
  6. Step 6: Final answer
    x = 393,935.34

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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.