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Finding the Fourth Proportional to 564,710.76, 779,313.42 and 310,062.96

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Solution

The fourth proportional to 564,710.76, 779,313.42 and 310,062.96 is: 427,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,710.76 : 779,313.42 = 310,062.96 : x
  2. Step 2: Convert to fraction form
    564,710.76/779,313.42 = 310,062.96/x
  3. Step 3: Cross multiply
    564,710.76x = 779,313.42 × 310,062.96
  4. Step 4: Simplify right side
    564,710.76x = 241,636,225,772.92
  5. Step 5: Solve for x
    x = 241,636,225,772.92/564,710.76
  6. Step 6: Final answer
    x = 427,893.79

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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.