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Finding the Fourth Proportional to 559,962.20, 839,943.30 and 349,718.60

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Solution

The fourth proportional to 559,962.20, 839,943.30 and 349,718.60 is: 524,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,962.20 : 839,943.30 = 349,718.60 : x
  2. Step 2: Convert to fraction form
    559,962.20/839,943.30 = 349,718.60/x
  3. Step 3: Cross multiply
    559,962.20x = 839,943.30 × 349,718.60
  4. Step 4: Simplify right side
    559,962.20x = 293,743,794,955.38
  5. Step 5: Solve for x
    x = 293,743,794,955.38/559,962.20
  6. Step 6: Final answer
    x = 524,577.90

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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.