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Finding the Fourth Proportional to 459,347.44, 688,724.76 and 219,331.44

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Solution

The fourth proportional to 459,347.44, 688,724.76 and 219,331.44 is: 328,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,347.44 : 688,724.76 = 219,331.44 : x
  2. Step 2: Convert to fraction form
    459,347.44/688,724.76 = 219,331.44/x
  3. Step 3: Cross multiply
    459,347.44x = 688,724.76 × 219,331.44
  4. Step 4: Simplify right side
    459,347.44x = 151,058,993,374.45
  5. Step 5: Solve for x
    x = 151,058,993,374.45/459,347.44
  6. Step 6: Final answer
    x = 328,855.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.