Home / 459,136.80-688,705.20-222,503.40

Finding the Fourth Proportional to 459,136.80, 688,705.20 and 222,503.40

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Solution

The fourth proportional to 459,136.80, 688,705.20 and 222,503.40 is: 333,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,136.80 : 688,705.20 = 222,503.40 : x
  2. Step 2: Convert to fraction form
    459,136.80/688,705.20 = 222,503.40/x
  3. Step 3: Cross multiply
    459,136.80x = 688,705.20 × 222,503.40
  4. Step 4: Simplify right side
    459,136.80x = 153,239,248,597.68
  5. Step 5: Solve for x
    x = 153,239,248,597.68/459,136.80
  6. Step 6: Final answer
    x = 333,755.10

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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.