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Finding the Fourth Proportional to 564,570.23, 779,086.73 and 319,549.73

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Solution

The fourth proportional to 564,570.23, 779,086.73 and 319,549.73 is: 440,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,570.23 : 779,086.73 = 319,549.73 : x
  2. Step 2: Convert to fraction form
    564,570.23/779,086.73 = 319,549.73/x
  3. Step 3: Cross multiply
    564,570.23x = 779,086.73 × 319,549.73
  4. Step 4: Simplify right side
    564,570.23x = 248,956,950,322.65
  5. Step 5: Solve for x
    x = 248,956,950,322.65/564,570.23
  6. Step 6: Final answer
    x = 440,967.20

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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.