Home / 459,966.24-689,949.36-209,905.44

Finding the Fourth Proportional to 459,966.24, 689,949.36 and 209,905.44

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Solution

The fourth proportional to 459,966.24, 689,949.36 and 209,905.44 is: 314,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,966.24 : 689,949.36 = 209,905.44 : x
  2. Step 2: Convert to fraction form
    459,966.24/689,949.36 = 209,905.44/x
  3. Step 3: Cross multiply
    459,966.24x = 689,949.36 × 209,905.44
  4. Step 4: Simplify right side
    459,966.24x = 144,824,123,988.52
  5. Step 5: Solve for x
    x = 144,824,123,988.52/459,966.24
  6. Step 6: Final answer
    x = 314,858.16

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Similar ratio
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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.