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Finding the Fourth Proportional to 564,571.23, 779,088.11 and 319,550.73

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Solution

The fourth proportional to 564,571.23, 779,088.11 and 319,550.73 is: 440,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,571.23 : 779,088.11 = 319,550.73 : x
  2. Step 2: Convert to fraction form
    564,571.23/779,088.11 = 319,550.73/x
  3. Step 3: Cross multiply
    564,571.23x = 779,088.11 × 319,550.73
  4. Step 4: Simplify right side
    564,571.23x = 248,958,174,284.82
  5. Step 5: Solve for x
    x = 248,958,174,284.82/564,571.23
  6. Step 6: Final answer
    x = 440,968.58

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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.