Home / 857,181.90-1,182,939.78-475,185.90

Finding the Fourth Proportional to 857,181.90, 1,182,939.78 and 475,185.90

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Solution

The fourth proportional to 857,181.90, 1,182,939.78 and 475,185.90 is: 655,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,181.90 : 1,182,939.78 = 475,185.90 : x
  2. Step 2: Convert to fraction form
    857,181.90/1,182,939.78 = 475,185.90/x
  3. Step 3: Cross multiply
    857,181.90x = 1,182,939.78 × 475,185.90
  4. Step 4: Simplify right side
    857,181.90x = 562,116,304,005.10
  5. Step 5: Solve for x
    x = 562,116,304,005.10/857,181.90
  6. Step 6: Final answer
    x = 655,772.48

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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.