Home / 312,784.62-431,631.21-169,541.59

Finding the Fourth Proportional to 312,784.62, 431,631.21 and 169,541.59

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Solution

The fourth proportional to 312,784.62, 431,631.21 and 169,541.59 is: 233,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,784.62 : 431,631.21 = 169,541.59 : x
  2. Step 2: Convert to fraction form
    312,784.62/431,631.21 = 169,541.59/x
  3. Step 3: Cross multiply
    312,784.62x = 431,631.21 × 169,541.59
  4. Step 4: Simplify right side
    312,784.62x = 73,179,441,637.02
  5. Step 5: Solve for x
    x = 73,179,441,637.02/312,784.62
  6. Step 6: Final answer
    x = 233,961.13

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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.