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Finding the Fourth Proportional to 564,671.96, 779,260.98 and 306,559.52

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Solution

The fourth proportional to 564,671.96, 779,260.98 and 306,559.52 is: 423,059.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,671.96 : 779,260.98 = 306,559.52 : x
  2. Step 2: Convert to fraction form
    564,671.96/779,260.98 = 306,559.52/x
  3. Step 3: Cross multiply
    564,671.96x = 779,260.98 × 306,559.52
  4. Step 4: Simplify right side
    564,671.96x = 238,889,871,983.53
  5. Step 5: Solve for x
    x = 238,889,871,983.53/564,671.96
  6. Step 6: Final answer
    x = 423,059.56

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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.