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Finding the Fourth Proportional to 619,943.44, 929,905.44 and 339,307.60

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Solution

The fourth proportional to 619,943.44, 929,905.44 and 339,307.60 is: 508,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,943.44 : 929,905.44 = 339,307.60 : x
  2. Step 2: Convert to fraction form
    619,943.44/929,905.44 = 339,307.60/x
  3. Step 3: Cross multiply
    619,943.44x = 929,905.44 × 339,307.60
  4. Step 4: Simplify right side
    619,943.44x = 315,523,983,073.34
  5. Step 5: Solve for x
    x = 315,523,983,073.34/619,943.44
  6. Step 6: Final answer
    x = 508,956.08

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Double scale
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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.