Home / 621,724.16-857,979.13-346,076.03

Finding the Fourth Proportional to 621,724.16, 857,979.13 and 346,076.03

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Solution

The fourth proportional to 621,724.16, 857,979.13 and 346,076.03 is: 477,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,724.16 : 857,979.13 = 346,076.03 : x
  2. Step 2: Convert to fraction form
    621,724.16/857,979.13 = 346,076.03/x
  3. Step 3: Cross multiply
    621,724.16x = 857,979.13 × 346,076.03
  4. Step 4: Simplify right side
    621,724.16x = 296,926,007,275.95
  5. Step 5: Solve for x
    x = 296,926,007,275.95/621,724.16
  6. Step 6: Final answer
    x = 477,584.80

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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.