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Finding the Fourth Proportional to 695,260.78, 959,459.82 and 377,308.78

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Solution

The fourth proportional to 695,260.78, 959,459.82 and 377,308.78 is: 520,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,260.78 : 959,459.82 = 377,308.78 : x
  2. Step 2: Convert to fraction form
    695,260.78/959,459.82 = 377,308.78/x
  3. Step 3: Cross multiply
    695,260.78x = 959,459.82 × 377,308.78
  4. Step 4: Simplify right side
    695,260.78x = 362,012,614,143.22
  5. Step 5: Solve for x
    x = 362,012,614,143.22/695,260.78
  6. Step 6: Final answer
    x = 520,686.09

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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.