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Finding the Fourth Proportional to 559,972.70, 839,959.05 and 349,729.10

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Solution

The fourth proportional to 559,972.70, 839,959.05 and 349,729.10 is: 524,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,972.70 : 839,959.05 = 349,729.10 : x
  2. Step 2: Convert to fraction form
    559,972.70/839,959.05 = 349,729.10/x
  3. Step 3: Cross multiply
    559,972.70x = 839,959.05 × 349,729.10
  4. Step 4: Simplify right side
    559,972.70x = 293,758,122,593.36
  5. Step 5: Solve for x
    x = 293,758,122,593.36/559,972.70
  6. Step 6: Final answer
    x = 524,593.65

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Double scale
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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.