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Finding the Fourth Proportional to 564,571.73, 779,088.80 and 319,551.23

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Solution

The fourth proportional to 564,571.73, 779,088.80 and 319,551.23 is: 440,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,571.73 : 779,088.80 = 319,551.23 : x
  2. Step 2: Convert to fraction form
    564,571.73/779,088.80 = 319,551.23/x
  3. Step 3: Cross multiply
    564,571.73x = 779,088.80 × 319,551.23
  4. Step 4: Simplify right side
    564,571.73x = 248,958,784,319.22
  5. Step 5: Solve for x
    x = 248,958,784,319.22/564,571.73
  6. Step 6: Final answer
    x = 440,969.27

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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.