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Finding the Fourth Proportional to 564,797.06, 779,428.88 and 306,673.86

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Solution

The fourth proportional to 564,797.06, 779,428.88 and 306,673.86 is: 423,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,797.06 : 779,428.88 = 306,673.86 : x
  2. Step 2: Convert to fraction form
    564,797.06/779,428.88 = 306,673.86/x
  3. Step 3: Cross multiply
    564,797.06x = 779,428.88 × 306,673.86
  4. Step 4: Simplify right side
    564,797.06x = 239,030,463,225.08
  5. Step 5: Solve for x
    x = 239,030,463,225.08/564,797.06
  6. Step 6: Final answer
    x = 423,214.78

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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.