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Finding the Fourth Proportional to 415,679.16, 573,636.99 and 224,692.55

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Solution

The fourth proportional to 415,679.16, 573,636.99 and 224,692.55 is: 310,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,679.16 : 573,636.99 = 224,692.55 : x
  2. Step 2: Convert to fraction form
    415,679.16/573,636.99 = 224,692.55/x
  3. Step 3: Cross multiply
    415,679.16x = 573,636.99 × 224,692.55
  4. Step 4: Simplify right side
    415,679.16x = 128,891,958,057.42
  5. Step 5: Solve for x
    x = 128,891,958,057.42/415,679.16
  6. Step 6: Final answer
    x = 310,075.58

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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.