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Finding the Fourth Proportional to 559,617.12, 772,249.14 and 304,962.84

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Solution

The fourth proportional to 559,617.12, 772,249.14 and 304,962.84 is: 420,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,617.12 : 772,249.14 = 304,962.84 : x
  2. Step 2: Convert to fraction form
    559,617.12/772,249.14 = 304,962.84/x
  3. Step 3: Cross multiply
    559,617.12x = 772,249.14 × 304,962.84
  4. Step 4: Simplify right side
    559,617.12x = 235,507,290,921.96
  5. Step 5: Solve for x
    x = 235,507,290,921.96/559,617.12
  6. Step 6: Final answer
    x = 420,836.47

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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.