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Finding the Fourth Proportional to 570,932.28, 856,398.42 and 238,275

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Solution

The fourth proportional to 570,932.28, 856,398.42 and 238,275 is: 357,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,932.28 : 856,398.42 = 238,275 : x
  2. Step 2: Convert to fraction form
    570,932.28/856,398.42 = 238,275/x
  3. Step 3: Cross multiply
    570,932.28x = 856,398.42 × 238,275
  4. Step 4: Simplify right side
    570,932.28x = 204,058,333,525.50
  5. Step 5: Solve for x
    x = 204,058,333,525.50/570,932.28
  6. Step 6: Final answer
    x = 357,412.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.